From acf647f7efbcfba5c65c8d019c604eddbbc41500 Mon Sep 17 00:00:00 2001
From: dk <workplace.davidkariuki@gmail.com>
Date: Wed, 7 Sep 2022 09:57:20 +0300
Subject: [PATCH 1/9] docs: updated file

update md file

Signed-off-by: dk <workplace.davidkariuki@gmail.com>
---
 .idea/codestream.xml |  2 +-
 .idea/workspace.xml  | 73 +++++++++++++++++++++-----------------------
 2 files changed, 36 insertions(+), 39 deletions(-)

diff --git a/.idea/codestream.xml b/.idea/codestream.xml
index 2933566..badb45d 100644
--- a/.idea/codestream.xml
+++ b/.idea/codestream.xml
@@ -2,6 +2,6 @@
 <project version="4">
   <component name="CodeStream">
     <option name="teamId" value="5f974fd585a2f13adc789a70" />
-    <option name="webViewContext" value="{&quot;chatProviderAccess&quot;:&quot;strict&quot;,&quot;newPostEntryPoint&quot;:&quot;JB Commit Detected&quot;,&quot;currentTeamId&quot;:&quot;5f974fd585a2f13adc789a70&quot;,&quot;currentStreamId&quot;:&quot;&quot;,&quot;pullRequestCheckoutBranch&quot;:false,&quot;isRepositioning&quot;:false,&quot;onboardStep&quot;:0,&quot;panelStack&quot;:[&quot;landing-redirect&quot;],&quot;hasFocus&quot;:true,&quot;channelFilter&quot;:&quot;all&quot;,&quot;channelsMuteAll&quot;:false,&quot;codemarkFileFilter&quot;:&quot;all&quot;,&quot;codemarkTypeFilter&quot;:&quot;all&quot;,&quot;codemarkTagFilter&quot;:&quot;all&quot;,&quot;codemarkBranchFilter&quot;:&quot;all&quot;,&quot;codemarkAuthorFilter&quot;:&quot;all&quot;,&quot;codemarksFileViewStyle&quot;:&quot;inline&quot;,&quot;codemarksShowArchived&quot;:false,&quot;codemarksShowResolved&quot;:false,&quot;codemarksWrapComments&quot;:false,&quot;showFeedbackSmiley&quot;:true,&quot;route&quot;:{&quot;name&quot;:&quot;providerAuth&quot;,&quot;params&quot;:{&quot;mode&quot;:&quot;strict&quot;,&quot;provider&quot;:&quot;github&quot;}},&quot;spatialViewShowPRComments&quot;:false,&quot;currentPullRequestNeedsRefresh&quot;:{&quot;needsRefresh&quot;:false,&quot;providerId&quot;:&quot;&quot;,&quot;pullRequestId&quot;:&quot;&quot;},&quot;__teamless__&quot;:{&quot;selectedRegion&quot;:&quot;us&quot;},&quot;sessionStart&quot;:1661490780054,&quot;isFirstPageview&quot;:false,&quot;currentReviewId&quot;:&quot;&quot;,&quot;currentReviewOptions&quot;:{&quot;includeLatestCommit&quot;:true}}" />
+    <option name="webViewContext" value="{&quot;chatProviderAccess&quot;:&quot;strict&quot;,&quot;currentTeamId&quot;:&quot;5f974fd585a2f13adc789a70&quot;,&quot;currentStreamId&quot;:&quot;&quot;,&quot;pullRequestCheckoutBranch&quot;:false,&quot;isRepositioning&quot;:false,&quot;onboardStep&quot;:0,&quot;panelStack&quot;:[&quot;landing-redirect&quot;],&quot;hasFocus&quot;:true,&quot;channelFilter&quot;:&quot;all&quot;,&quot;channelsMuteAll&quot;:false,&quot;codemarkFileFilter&quot;:&quot;all&quot;,&quot;codemarkTypeFilter&quot;:&quot;all&quot;,&quot;codemarkTagFilter&quot;:&quot;all&quot;,&quot;codemarkBranchFilter&quot;:&quot;all&quot;,&quot;codemarkAuthorFilter&quot;:&quot;all&quot;,&quot;codemarksFileViewStyle&quot;:&quot;inline&quot;,&quot;codemarksShowArchived&quot;:false,&quot;codemarksShowResolved&quot;:false,&quot;codemarksWrapComments&quot;:false,&quot;showFeedbackSmiley&quot;:true,&quot;route&quot;:{&quot;name&quot;:&quot;providerAuth&quot;,&quot;params&quot;:{&quot;mode&quot;:&quot;strict&quot;,&quot;provider&quot;:&quot;github&quot;}},&quot;spatialViewShowPRComments&quot;:false,&quot;currentPullRequestNeedsRefresh&quot;:{&quot;needsRefresh&quot;:false,&quot;providerId&quot;:&quot;&quot;,&quot;pullRequestId&quot;:&quot;&quot;},&quot;__teamless__&quot;:{&quot;selectedRegion&quot;:&quot;us&quot;},&quot;sessionStart&quot;:1662531643567,&quot;isFirstPageview&quot;:false,&quot;currentReviewId&quot;:&quot;&quot;,&quot;currentReviewOptions&quot;:{&quot;includeLatestCommit&quot;:true}}" />
   </component>
 </project>
\ No newline at end of file
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 418f424..7f1ebe8 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -4,21 +4,17 @@
     <option name="autoReloadType" value="SELECTIVE" />
   </component>
   <component name="ChangeListManager">
-    <list default="true" id="a504d89a-f171-4573-83c4-bd9e6b0036d0" name="feat" comment="feat: triplets with smaller sum&#10;&#10;add class with code to search for triplets with smaller sum and return a list with the triplets">
-      <change afterPath="$PROJECT_DIR$/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/SubArraysWithProductLessThanTarget.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/codestream.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/codestream.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-    </list>
+    <list default="true" id="a504d89a-f171-4573-83c4-bd9e6b0036d0" name="feat" comment="feat: sub-arrays with product less than a target&#10;&#10;add class with code to search sub-arrays with product less than a target" />
     <list id="ae46ed5c-9428-478d-a42f-255ba9fecbf4" name="bug" comment="fix: permutation&#10;&#10;fix permutation method" />
     <list id="c6cd90a1-81ca-43ac-9545-e77e106ae078" name="changes" comment="feat(package): add code to find the smallest common number&#10;&#10;Given 3 int arrays sorted in asc order, return the smallest number found in all three arrays&#10;&#10;closes #38" />
     <list id="2ba4749a-a363-4d1c-b99b-337f7e342307" name="config" comment="chore: config&#10;&#10;add project configuration" />
-    <list id="5cd8dfbc-67cf-4aa9-94a4-8500dee0ca36" name="docs" comment="docs: updated file&#10;&#10;update md file" />
+    <list id="5cd8dfbc-67cf-4aa9-94a4-8500dee0ca36" name="docs" comment="docs: updated file&#10;&#10;update md file">
+      <change beforePath="$PROJECT_DIR$/.idea/codestream.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/codestream.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+    </list>
     <list id="7d47c9e0-bea8-4034-aabb-f2bf018a3cbc" name="fix" comment="fix: &#10;&#10;" />
     <list id="ef692923-6f0b-4f28-8f22-a56c94422040" name="Minor changes" comment="Minor changes" />
-    <list id="6d3f09a0-63e1-48ce-9951-ab9c32aba3c4" name="refactoring" comment="refactor: refactor&#10;&#10;perform minor refactoring">
-      <change beforePath="$PROJECT_DIR$/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/ClassTemplate.java" beforeDir="false" afterPath="$PROJECT_DIR$/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/ClassTemplate.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/TripletsWithSmallerSum_ReturnList.java" beforeDir="false" afterPath="$PROJECT_DIR$/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/TripletsWithSmallerSum_ReturnList.java" afterDir="false" />
-    </list>
+    <list id="6d3f09a0-63e1-48ce-9951-ab9c32aba3c4" name="refactoring" comment="refactor: refactor&#10;&#10;perform minor refactoring" />
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
     <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
@@ -218,7 +214,7 @@
   </component>
   <component name="SpellCheckerSettings" RuntimeDictionaries="0" Folders="0" CustomDictionaries="0" DefaultDictionary="application-level" UseSingleDictionary="true" transferred="true" />
   <component name="TaskManager">
-    <task id="Default" summary="Default task">
+    <task active="true" id="Default" summary="Default task">
       <changelist id="c6cd90a1-81ca-43ac-9545-e77e106ae078" name="Changes" comment="Fix merge conflicts" />
       <created>1660052882094</created>
       <option name="number" value="Default" />
@@ -227,28 +223,8 @@
       <workItem from="1660728773037" duration="256000" />
       <workItem from="1660729074231" duration="7457000" />
       <workItem from="1660802034664" duration="17041000" />
-    </task>
-    <task id="LOCAL-00043" summary="ReadMe">
-      <changelist id="5cd8dfbc-67cf-4aa9-94a4-8500dee0ca36" name="ReadMe" comment="feat: updated file&#10;&#10;update readme file" />
-      <created>1661262977289</created>
-      <option name="number" value="00043" />
-      <option name="presentableId" value="LOCAL-00043" />
-      <option name="project" value="LOCAL" />
-      <updated>1661262977289</updated>
-    </task>
-    <task id="LOCAL-00044" summary="feat: updated file&#10;&#10;update readme file">
-      <created>1661262987222</created>
-      <option name="number" value="00044" />
-      <option name="presentableId" value="LOCAL-00044" />
-      <option name="project" value="LOCAL" />
-      <updated>1661262987222</updated>
-    </task>
-    <task id="LOCAL-00045" summary="chore: config&#10;&#10;add project configuration">
-      <created>1661263007135</created>
-      <option name="number" value="00045" />
-      <option name="presentableId" value="LOCAL-00045" />
-      <option name="project" value="LOCAL" />
-      <updated>1661263007135</updated>
+      <workItem from="1661751056208" duration="1330000" />
+      <workItem from="1662531641995" duration="1131000" />
     </task>
     <task id="LOCAL-00046" summary="refactor: refactor&#10;&#10;perform minor refactoring">
       <created>1661320138829</created>
@@ -574,7 +550,28 @@
       <option name="project" value="LOCAL" />
       <updated>1661501098650</updated>
     </task>
-    <option name="localTasksCounter" value="92" />
+    <task id="LOCAL-00092" summary="feat: sub-arrays with product less than a target&#10;&#10;add class with code to search sub-arrays with product less than a target">
+      <created>1661520498162</created>
+      <option name="number" value="00092" />
+      <option name="presentableId" value="LOCAL-00092" />
+      <option name="project" value="LOCAL" />
+      <updated>1661520498162</updated>
+    </task>
+    <task id="LOCAL-00093" summary="refactor: refactor&#10;&#10;perform minor refactoring">
+      <created>1661520505449</created>
+      <option name="number" value="00093" />
+      <option name="presentableId" value="LOCAL-00093" />
+      <option name="project" value="LOCAL" />
+      <updated>1661520505449</updated>
+    </task>
+    <task id="LOCAL-00094" summary="refactor: refactor&#10;&#10;perform minor refactoring">
+      <created>1661520514999</created>
+      <option name="number" value="00094" />
+      <option name="presentableId" value="LOCAL-00094" />
+      <option name="project" value="LOCAL" />
+      <updated>1661520514999</updated>
+    </task>
+    <option name="localTasksCounter" value="95" />
     <option name="trackContextForNewChangelist" value="true" />
     <servers />
   </component>
@@ -598,7 +595,6 @@
     <option name="CHECK_CODE_CLEANUP_BEFORE_PROJECT_COMMIT" value="true" />
     <confirmRemoveEmptyChangelist value="1" />
     <option name="ADD_EXTERNAL_FILES_SILENTLY" value="true" />
-    <MESSAGE value="feat: sum of maximum sub array&#10;&#10;add code to perform maximum sum subarray of size K (easy)" />
     <MESSAGE value="feat: sum of smallest subarray&#10;&#10;add code to get smallest subarray with a greater sum (easy)" />
     <MESSAGE value="feat: square sorted array&#10;&#10;add code to square a sorted array (easy)" />
     <MESSAGE value="feat: array subset&#10;&#10;add code to find all of an arrays distinct subsets" />
@@ -620,10 +616,11 @@
     <MESSAGE value="feat: triplets with smaller sum&#10;&#10;add class with code to search for triplets with smaller sum and return count" />
     <MESSAGE value="feat: triplets with smaller sum&#10;&#10;add class with code to search for triplets with smaller sum and return a list with the triplets" />
     <MESSAGE value="feat: triplets with smaller sum&#10;&#10;add class with code to search for triplets with smaller sum and return count of the triplets&#10;&#10;Signed-off-by: dk &lt;workplace.davidkariuki@gmail.com&gt;" />
-    <MESSAGE value="refactor: refactor&#10;&#10;perform minor refactoring" />
-    <MESSAGE value="chore: config&#10;&#10;add project configuration" />
     <MESSAGE value="docs: updated file&#10;&#10;update md file" />
-    <option name="LAST_COMMIT_MESSAGE" value="docs: updated file&#10;&#10;update md file" />
+    <MESSAGE value="feat: sub-arrays with product less than a target&#10;&#10;add class with code to search sub-arrays with product less than a target" />
+    <MESSAGE value="chore: config&#10;&#10;add project configuration" />
+    <MESSAGE value="refactor: refactor&#10;&#10;perform minor refactoring" />
+    <option name="LAST_COMMIT_MESSAGE" value="refactor: refactor&#10;&#10;perform minor refactoring" />
     <option name="OPTIMIZE_IMPORTS_BEFORE_PROJECT_COMMIT" value="true" />
     <option name="REFORMAT_BEFORE_PROJECT_COMMIT" value="true" />
     <option name="REARRANGE_BEFORE_PROJECT_COMMIT" value="true" />

From c0a5d618bf4e861c91995dd5086457c6b27598e5 Mon Sep 17 00:00:00 2001
From: dk <workplace.davidkariuki@gmail.com>
Date: Wed, 7 Sep 2022 11:34:23 +0300
Subject: [PATCH 2/9] docs: updated file

update md file

Signed-off-by: dk <workplace.davidkariuki@gmail.com>
---
 .idea/codestream.xml |  2 +-
 .idea/workspace.xml  | 64 +++++++++++++++++++++++---------------------
 2 files changed, 34 insertions(+), 32 deletions(-)

diff --git a/.idea/codestream.xml b/.idea/codestream.xml
index badb45d..608fecf 100644
--- a/.idea/codestream.xml
+++ b/.idea/codestream.xml
@@ -2,6 +2,6 @@
 <project version="4">
   <component name="CodeStream">
     <option name="teamId" value="5f974fd585a2f13adc789a70" />
-    <option name="webViewContext" value="{&quot;chatProviderAccess&quot;:&quot;strict&quot;,&quot;currentTeamId&quot;:&quot;5f974fd585a2f13adc789a70&quot;,&quot;currentStreamId&quot;:&quot;&quot;,&quot;pullRequestCheckoutBranch&quot;:false,&quot;isRepositioning&quot;:false,&quot;onboardStep&quot;:0,&quot;panelStack&quot;:[&quot;landing-redirect&quot;],&quot;hasFocus&quot;:true,&quot;channelFilter&quot;:&quot;all&quot;,&quot;channelsMuteAll&quot;:false,&quot;codemarkFileFilter&quot;:&quot;all&quot;,&quot;codemarkTypeFilter&quot;:&quot;all&quot;,&quot;codemarkTagFilter&quot;:&quot;all&quot;,&quot;codemarkBranchFilter&quot;:&quot;all&quot;,&quot;codemarkAuthorFilter&quot;:&quot;all&quot;,&quot;codemarksFileViewStyle&quot;:&quot;inline&quot;,&quot;codemarksShowArchived&quot;:false,&quot;codemarksShowResolved&quot;:false,&quot;codemarksWrapComments&quot;:false,&quot;showFeedbackSmiley&quot;:true,&quot;route&quot;:{&quot;name&quot;:&quot;providerAuth&quot;,&quot;params&quot;:{&quot;mode&quot;:&quot;strict&quot;,&quot;provider&quot;:&quot;github&quot;}},&quot;spatialViewShowPRComments&quot;:false,&quot;currentPullRequestNeedsRefresh&quot;:{&quot;needsRefresh&quot;:false,&quot;providerId&quot;:&quot;&quot;,&quot;pullRequestId&quot;:&quot;&quot;},&quot;__teamless__&quot;:{&quot;selectedRegion&quot;:&quot;us&quot;},&quot;sessionStart&quot;:1662531643567,&quot;isFirstPageview&quot;:false,&quot;currentReviewId&quot;:&quot;&quot;,&quot;currentReviewOptions&quot;:{&quot;includeLatestCommit&quot;:true}}" />
+    <option name="webViewContext" value="{&quot;chatProviderAccess&quot;:&quot;strict&quot;,&quot;currentTeamId&quot;:&quot;5f974fd585a2f13adc789a70&quot;,&quot;currentStreamId&quot;:&quot;&quot;,&quot;pullRequestCheckoutBranch&quot;:false,&quot;isRepositioning&quot;:false,&quot;onboardStep&quot;:0,&quot;panelStack&quot;:[&quot;landing-redirect&quot;],&quot;hasFocus&quot;:true,&quot;channelFilter&quot;:&quot;all&quot;,&quot;channelsMuteAll&quot;:false,&quot;codemarkFileFilter&quot;:&quot;all&quot;,&quot;codemarkTypeFilter&quot;:&quot;all&quot;,&quot;codemarkTagFilter&quot;:&quot;all&quot;,&quot;codemarkBranchFilter&quot;:&quot;all&quot;,&quot;codemarkAuthorFilter&quot;:&quot;all&quot;,&quot;codemarksFileViewStyle&quot;:&quot;inline&quot;,&quot;codemarksShowArchived&quot;:false,&quot;codemarksShowResolved&quot;:false,&quot;codemarksWrapComments&quot;:false,&quot;showFeedbackSmiley&quot;:true,&quot;route&quot;:{&quot;name&quot;:&quot;providerAuth&quot;,&quot;params&quot;:{&quot;mode&quot;:&quot;strict&quot;,&quot;provider&quot;:&quot;github&quot;}},&quot;spatialViewShowPRComments&quot;:false,&quot;currentPullRequestNeedsRefresh&quot;:{&quot;needsRefresh&quot;:false,&quot;providerId&quot;:&quot;&quot;,&quot;pullRequestId&quot;:&quot;&quot;},&quot;__teamless__&quot;:{&quot;selectedRegion&quot;:&quot;us&quot;},&quot;sessionStart&quot;:1662539236842,&quot;isFirstPageview&quot;:false,&quot;currentReviewId&quot;:&quot;&quot;,&quot;currentReviewOptions&quot;:{&quot;includeLatestCommit&quot;:true}}" />
   </component>
 </project>
\ No newline at end of file
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 7f1ebe8..61031aa 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -4,14 +4,14 @@
     <option name="autoReloadType" value="SELECTIVE" />
   </component>
   <component name="ChangeListManager">
-    <list default="true" id="a504d89a-f171-4573-83c4-bd9e6b0036d0" name="feat" comment="feat: sub-arrays with product less than a target&#10;&#10;add class with code to search sub-arrays with product less than a target" />
+    <list default="true" id="c6cd90a1-81ca-43ac-9545-e77e106ae078" name="changes" comment="feat(package): add code to find the smallest common number&#10;&#10;Given 3 int arrays sorted in asc order, return the smallest number found in all three arrays&#10;&#10;closes #38" />
     <list id="ae46ed5c-9428-478d-a42f-255ba9fecbf4" name="bug" comment="fix: permutation&#10;&#10;fix permutation method" />
-    <list id="c6cd90a1-81ca-43ac-9545-e77e106ae078" name="changes" comment="feat(package): add code to find the smallest common number&#10;&#10;Given 3 int arrays sorted in asc order, return the smallest number found in all three arrays&#10;&#10;closes #38" />
     <list id="2ba4749a-a363-4d1c-b99b-337f7e342307" name="config" comment="chore: config&#10;&#10;add project configuration" />
     <list id="5cd8dfbc-67cf-4aa9-94a4-8500dee0ca36" name="docs" comment="docs: updated file&#10;&#10;update md file">
       <change beforePath="$PROJECT_DIR$/.idea/codestream.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/codestream.xml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
     </list>
+    <list id="a504d89a-f171-4573-83c4-bd9e6b0036d0" name="feat" comment="feat: sub-arrays with product less than a target&#10;&#10;add class with code to search sub-arrays with product less than a target" />
     <list id="7d47c9e0-bea8-4034-aabb-f2bf018a3cbc" name="fix" comment="fix: &#10;&#10;" />
     <list id="ef692923-6f0b-4f28-8f22-a56c94422040" name="Minor changes" comment="Minor changes" />
     <list id="6d3f09a0-63e1-48ce-9951-ab9c32aba3c4" name="refactoring" comment="refactor: refactor&#10;&#10;perform minor refactoring" />
@@ -105,25 +105,25 @@
     <option name="hideEmptyMiddlePackages" value="true" />
     <option name="showLibraryContents" value="true" />
   </component>
-  <component name="PropertiesComponent"><![CDATA[{
-  "keyToString": {
-    "ASKED_ADD_EXTERNAL_FILES": "true",
-    "ASKED_SHARE_PROJECT_CONFIGURATION_FILES": "true",
-    "Project.color": "1c014d",
-    "RunOnceActivity.OpenProjectViewOnStart": "true",
-    "RunOnceActivity.ShowReadmeOnStart": "true",
-    "SHARE_PROJECT_CONFIGURATION_FILES": "true",
-    "WebServerToolWindowFactoryState": "false",
-    "dart.analysis.tool.window.visible": "false",
-    "last_opened_file_path": "E:/Dev/Projects/Noti/mobile_backend",
-    "nodejs_package_manager_path": "npm",
-    "project.structure.last.edited": "Project",
-    "project.structure.proportion": "0.0",
-    "project.structure.side.proportion": "0.0",
-    "settings.editor.selected.configurable": "preferences.pluginManager",
-    "show.migrate.to.gradle.popup": "false"
+  <component name="PropertiesComponent">{
+  &quot;keyToString&quot;: {
+    &quot;ASKED_ADD_EXTERNAL_FILES&quot;: &quot;true&quot;,
+    &quot;ASKED_SHARE_PROJECT_CONFIGURATION_FILES&quot;: &quot;true&quot;,
+    &quot;Project.color&quot;: &quot;1c014d&quot;,
+    &quot;RunOnceActivity.OpenProjectViewOnStart&quot;: &quot;true&quot;,
+    &quot;RunOnceActivity.ShowReadmeOnStart&quot;: &quot;true&quot;,
+    &quot;SHARE_PROJECT_CONFIGURATION_FILES&quot;: &quot;true&quot;,
+    &quot;WebServerToolWindowFactoryState&quot;: &quot;false&quot;,
+    &quot;dart.analysis.tool.window.visible&quot;: &quot;false&quot;,
+    &quot;last_opened_file_path&quot;: &quot;E:/Dev/Projects/Learning/Java/AceTheJavaCodingInterview&quot;,
+    &quot;nodejs_package_manager_path&quot;: &quot;npm&quot;,
+    &quot;project.structure.last.edited&quot;: &quot;Project&quot;,
+    &quot;project.structure.proportion&quot;: &quot;0.0&quot;,
+    &quot;project.structure.side.proportion&quot;: &quot;0.0&quot;,
+    &quot;settings.editor.selected.configurable&quot;: &quot;preferences.pluginManager&quot;,
+    &quot;show.migrate.to.gradle.popup&quot;: &quot;false&quot;
   }
-}]]></component>
+}</component>
   <component name="RecentsManager">
     <key name="CopyFile.RECENT_KEYS">
       <recent name="E:\Dev\Projects\Learning\Java\AceTheJavaCodingInterview\app\src\main\java\AceTheJavaCodingInterview\module2_data_structures\arrays\binary_search" />
@@ -224,14 +224,9 @@
       <workItem from="1660729074231" duration="7457000" />
       <workItem from="1660802034664" duration="17041000" />
       <workItem from="1661751056208" duration="1330000" />
-      <workItem from="1662531641995" duration="1131000" />
-    </task>
-    <task id="LOCAL-00046" summary="refactor: refactor&#10;&#10;perform minor refactoring">
-      <created>1661320138829</created>
-      <option name="number" value="00046" />
-      <option name="presentableId" value="LOCAL-00046" />
-      <option name="project" value="LOCAL" />
-      <updated>1661320138829</updated>
+      <workItem from="1662531641995" duration="1753000" />
+      <workItem from="1662536086470" duration="1669000" />
+      <workItem from="1662539228801" duration="338000" />
     </task>
     <task id="LOCAL-00047" summary="feat: array subset&#10;&#10;add code to find all distinct subsets of an array with duplicates">
       <created>1661321492130</created>
@@ -571,7 +566,14 @@
       <option name="project" value="LOCAL" />
       <updated>1661520514999</updated>
     </task>
-    <option name="localTasksCounter" value="95" />
+    <task id="LOCAL-00095" summary="docs: updated file&#10;&#10;update md file">
+      <created>1662533841562</created>
+      <option name="number" value="00095" />
+      <option name="presentableId" value="LOCAL-00095" />
+      <option name="project" value="LOCAL" />
+      <updated>1662533841563</updated>
+    </task>
+    <option name="localTasksCounter" value="96" />
     <option name="trackContextForNewChangelist" value="true" />
     <servers />
   </component>
@@ -616,11 +618,11 @@
     <MESSAGE value="feat: triplets with smaller sum&#10;&#10;add class with code to search for triplets with smaller sum and return count" />
     <MESSAGE value="feat: triplets with smaller sum&#10;&#10;add class with code to search for triplets with smaller sum and return a list with the triplets" />
     <MESSAGE value="feat: triplets with smaller sum&#10;&#10;add class with code to search for triplets with smaller sum and return count of the triplets&#10;&#10;Signed-off-by: dk &lt;workplace.davidkariuki@gmail.com&gt;" />
-    <MESSAGE value="docs: updated file&#10;&#10;update md file" />
     <MESSAGE value="feat: sub-arrays with product less than a target&#10;&#10;add class with code to search sub-arrays with product less than a target" />
     <MESSAGE value="chore: config&#10;&#10;add project configuration" />
     <MESSAGE value="refactor: refactor&#10;&#10;perform minor refactoring" />
-    <option name="LAST_COMMIT_MESSAGE" value="refactor: refactor&#10;&#10;perform minor refactoring" />
+    <MESSAGE value="docs: updated file&#10;&#10;update md file" />
+    <option name="LAST_COMMIT_MESSAGE" value="docs: updated file&#10;&#10;update md file" />
     <option name="OPTIMIZE_IMPORTS_BEFORE_PROJECT_COMMIT" value="true" />
     <option name="REFORMAT_BEFORE_PROJECT_COMMIT" value="true" />
     <option name="REARRANGE_BEFORE_PROJECT_COMMIT" value="true" />

From 18d8b1914244256b23f29376b1b45faedd60fb19 Mon Sep 17 00:00:00 2001
From: dk <workplace.davidkariuki@gmail.com>
Date: Wed, 7 Sep 2022 11:35:13 +0300
Subject: [PATCH 3/9] docs: updated file

update md file

Signed-off-by: dk <workplace.davidkariuki@gmail.com>
---
 .idea/codestream.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.idea/codestream.xml b/.idea/codestream.xml
index 608fecf..396df6a 100644
--- a/.idea/codestream.xml
+++ b/.idea/codestream.xml
@@ -2,6 +2,6 @@
 <project version="4">
   <component name="CodeStream">
     <option name="teamId" value="5f974fd585a2f13adc789a70" />
-    <option name="webViewContext" value="{&quot;chatProviderAccess&quot;:&quot;strict&quot;,&quot;currentTeamId&quot;:&quot;5f974fd585a2f13adc789a70&quot;,&quot;currentStreamId&quot;:&quot;&quot;,&quot;pullRequestCheckoutBranch&quot;:false,&quot;isRepositioning&quot;:false,&quot;onboardStep&quot;:0,&quot;panelStack&quot;:[&quot;landing-redirect&quot;],&quot;hasFocus&quot;:true,&quot;channelFilter&quot;:&quot;all&quot;,&quot;channelsMuteAll&quot;:false,&quot;codemarkFileFilter&quot;:&quot;all&quot;,&quot;codemarkTypeFilter&quot;:&quot;all&quot;,&quot;codemarkTagFilter&quot;:&quot;all&quot;,&quot;codemarkBranchFilter&quot;:&quot;all&quot;,&quot;codemarkAuthorFilter&quot;:&quot;all&quot;,&quot;codemarksFileViewStyle&quot;:&quot;inline&quot;,&quot;codemarksShowArchived&quot;:false,&quot;codemarksShowResolved&quot;:false,&quot;codemarksWrapComments&quot;:false,&quot;showFeedbackSmiley&quot;:true,&quot;route&quot;:{&quot;name&quot;:&quot;providerAuth&quot;,&quot;params&quot;:{&quot;mode&quot;:&quot;strict&quot;,&quot;provider&quot;:&quot;github&quot;}},&quot;spatialViewShowPRComments&quot;:false,&quot;currentPullRequestNeedsRefresh&quot;:{&quot;needsRefresh&quot;:false,&quot;providerId&quot;:&quot;&quot;,&quot;pullRequestId&quot;:&quot;&quot;},&quot;__teamless__&quot;:{&quot;selectedRegion&quot;:&quot;us&quot;},&quot;sessionStart&quot;:1662539236842,&quot;isFirstPageview&quot;:false,&quot;currentReviewId&quot;:&quot;&quot;,&quot;currentReviewOptions&quot;:{&quot;includeLatestCommit&quot;:true}}" />
+    <option name="webViewContext" value="{&quot;chatProviderAccess&quot;:&quot;strict&quot;,&quot;newPostEntryPoint&quot;:&quot;JB Commit Detected&quot;,&quot;currentTeamId&quot;:&quot;5f974fd585a2f13adc789a70&quot;,&quot;currentStreamId&quot;:&quot;&quot;,&quot;pullRequestCheckoutBranch&quot;:false,&quot;isRepositioning&quot;:false,&quot;onboardStep&quot;:0,&quot;panelStack&quot;:[&quot;new-review&quot;,&quot;landing-redirect&quot;],&quot;hasFocus&quot;:true,&quot;channelFilter&quot;:&quot;all&quot;,&quot;channelsMuteAll&quot;:false,&quot;codemarkFileFilter&quot;:&quot;all&quot;,&quot;codemarkTypeFilter&quot;:&quot;all&quot;,&quot;codemarkTagFilter&quot;:&quot;all&quot;,&quot;codemarkBranchFilter&quot;:&quot;all&quot;,&quot;codemarkAuthorFilter&quot;:&quot;all&quot;,&quot;codemarksFileViewStyle&quot;:&quot;inline&quot;,&quot;codemarksShowArchived&quot;:false,&quot;codemarksShowResolved&quot;:false,&quot;codemarksWrapComments&quot;:false,&quot;showFeedbackSmiley&quot;:true,&quot;route&quot;:{&quot;name&quot;:&quot;providerAuth&quot;,&quot;params&quot;:{&quot;mode&quot;:&quot;strict&quot;,&quot;provider&quot;:&quot;github&quot;}},&quot;spatialViewShowPRComments&quot;:false,&quot;currentPullRequestNeedsRefresh&quot;:{&quot;needsRefresh&quot;:false,&quot;providerId&quot;:&quot;&quot;,&quot;pullRequestId&quot;:&quot;&quot;},&quot;__teamless__&quot;:{&quot;selectedRegion&quot;:&quot;us&quot;},&quot;sessionStart&quot;:1662539236842,&quot;isFirstPageview&quot;:false,&quot;currentReviewId&quot;:&quot;&quot;,&quot;currentReviewOptions&quot;:{&quot;includeLatestCommit&quot;:true}}" />
   </component>
 </project>
\ No newline at end of file

From 9f3597af31eb9d78ccef5cde8f7b3d69a5c253fb Mon Sep 17 00:00:00 2001
From: dk <workplace.davidkariuki@gmail.com>
Date: Wed, 7 Sep 2022 12:35:33 +0300
Subject: [PATCH 4/9] feat: sub-arrays with product less than a target

add class with code to search sub-arrays with product less than a target

Signed-off-by: dk <workplace.davidkariuki@gmail.com>
---
 .../arrays/SubArraysWithProductLessThanTarget.java         | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/SubArraysWithProductLessThanTarget.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/SubArraysWithProductLessThanTarget.java
index 4c3a5be..6dc65fa 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/SubArraysWithProductLessThanTarget.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/SubArraysWithProductLessThanTarget.java
@@ -21,8 +21,11 @@
  *     <p>In this problem, the input array is not sorted. Instead of finding triplets with sum less
  *     than a target, we need to find all sub-arrays having a product less than the target. The
  *     implementation will be quite similar to Triplets with Smaller Sum.
- * @note Time Complexity -
- * @note Space Complexity -
+ * @note Time Complexity - The main for-loop managing the sliding window takes O(N) but creating
+ *     sub-arrays can take up to O(N^2) in the worst case. Therefore overall, our algorithm will
+ *     take O(N^3).
+ * @note Space Complexity - Ignoring the space required for the output list, the algorithm runs in
+ *     O(N) space which is used for the temp list.
  * @author David Kariuki
  * @since 26/8/2022
  * @see AceTheJavaCodingInterview.module2_data_structures.arrays.TripletsWithSmallerSum_ReturnCount

From 40df489f7219891d0183a9bb29ebe7a4f0d63bab Mon Sep 17 00:00:00 2001
From: dk <workplace.davidkariuki@gmail.com>
Date: Wed, 7 Sep 2022 12:51:00 +0300
Subject: [PATCH 5/9] refactor: refactor

refactor package names

Signed-off-by: dk <workplace.davidkariuki@gmail.com>
---
 .../ClassTemplate.java                        |  4 +++-
 .../FindMaximumInSlidingWindow.java           |  2 +-
 .../FindTheSmallestCommonNumber.java          |  6 ++---
 .../MaximumSumSubarrayOfSizeK.java            |  2 +-
 .../MergeAnArrayWithOverlappingIntervals.java |  4 ++--
 .../OneDimensionalArrays.java                 |  2 +-
 .../{arrays => array}/PairWithTargetSum.java  |  2 +-
 .../{arrays => array}/Permutations.java       |  6 ++---
 .../SmallestSubarrayWithAGreaterSum.java      |  2 +-
 .../SquaringASortedArray.java                 |  2 +-
 .../SubArraysWithProductLessThanTarget.java   | 22 +++++++++----------
 .../{arrays => array}/Subset.java             |  2 +-
 .../SubsetsWithDuplicates.java                |  2 +-
 .../TripletSumCloseToTarget.java              |  6 ++---
 .../{arrays => array}/TripletSumToZero.java   | 10 ++++-----
 .../TripletsWithSmallerSum_ReturnCount.java   |  4 ++--
 .../TripletsWithSmallerSum_ReturnList.java    |  6 ++---
 .../TwoDimensionalArrays.java                 |  2 +-
 .../{arrays => array}/_arrays.md              |  0
 .../BinarySearchOnSortedArray_Iterative.java  |  2 +-
 .../BinarySearchOnSortedArray_Recursive.java  |  2 +-
 .../binary_search/BitonicArrayMaximum.java    |  2 +-
 ...owOrHighIndexOfAnElementInSortedArray.java |  2 +-
 .../MoveAllZerosToTheBeginningOfTheArray.java |  2 +-
 .../OrderAgnosticBinarySearch.java            |  2 +-
 .../SearchRotatedArray_Iteratively.java       |  2 +-
 .../SearchRotatedArray_Recursive.java         |  2 +-
 .../StockBuySellToMaximizeProfit.java         |  4 ++--
 ...rrangeSortedArrayInMaxOrMinForm_SOL_1.java |  2 +-
 ...rrangeSortedArrayInMaxOrMinForm_SOL_2.java |  2 +-
 .../CH11_FindTheSumOfMaximumSumSubarray.java  |  2 +-
 .../challenges/CH1_RemoveEvenFromArray.java   |  2 +-
 .../challenges/CH2_MergeTwoSortedArrays.java  |  6 ++---
 .../CH3_FindTwoNoAddingUpToN_Sol_1.java       |  2 +-
 .../CH3_FindTwoNoAddingUpToN_Sol_2.java       |  2 +-
 ...ayOFProductsOfAllElementsExceptItself.java |  2 +-
 .../CH5_FindMinimumValueInArray.java          |  2 +-
 ...6_FindFirstNonRepeatingIntegerInArray.java |  2 +-
 ...7_FindSecondMaximumValueInArray_Sol_1.java |  2 +-
 ...7_FindSecondMaximumValueInArray_Sol_2.java |  2 +-
 .../CH8_RightRotateTheArrayByOneIndex.java    |  2 +-
 ...rrangePositiveAndNegativeValues_SOL_1.java |  2 +-
 ...rrangePositiveAndNegativeValues_SOL_2.java |  2 +-
 .../sorting/CyclicSortEasy.java               |  2 +-
 .../sorting/QuicksortAlgorithm.java           |  2 +-
 .../PairWithTargetSum.java                    |  2 +-
 .../hash_table/_hash_tables.md                |  0
 .../_stacks_and_queues.md                     |  0
 .../{tuples => tuple}/Interval.java           |  2 +-
 .../{tuples => tuple}/Tuple.java              |  2 +-
 .../{tuples => tuple}/_tuples.md              |  0
 51 files changed, 76 insertions(+), 74 deletions(-)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/FindMaximumInSlidingWindow.java (98%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/FindTheSmallestCommonNumber.java (90%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/MaximumSumSubarrayOfSizeK.java (97%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/MergeAnArrayWithOverlappingIntervals.java (96%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/OneDimensionalArrays.java (94%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/PairWithTargetSum.java (98%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/Permutations.java (95%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/SmallestSubarrayWithAGreaterSum.java (97%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/SquaringASortedArray.java (96%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/SubArraysWithProductLessThanTarget.java (73%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/Subset.java (97%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/SubsetsWithDuplicates.java (98%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/TripletSumCloseToTarget.java (92%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/TripletSumToZero.java (91%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/TripletsWithSmallerSum_ReturnCount.java (95%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/TripletsWithSmallerSum_ReturnList.java (93%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/TwoDimensionalArrays.java (91%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/_arrays.md (100%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/binary_search/BinarySearchOnSortedArray_Iterative.java (95%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/binary_search/BinarySearchOnSortedArray_Recursive.java (97%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/binary_search/BitonicArrayMaximum.java (97%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/binary_search/FindLowOrHighIndexOfAnElementInSortedArray.java (97%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/binary_search/MoveAllZerosToTheBeginningOfTheArray.java (96%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/binary_search/OrderAgnosticBinarySearch.java (98%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/binary_search/SearchRotatedArray_Iteratively.java (96%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/binary_search/SearchRotatedArray_Recursive.java (96%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/binary_search/StockBuySellToMaximizeProfit.java (95%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_1.java (96%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_2.java (95%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/challenges/CH11_FindTheSumOfMaximumSumSubarray.java (96%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/challenges/CH1_RemoveEvenFromArray.java (95%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/challenges/CH2_MergeTwoSortedArrays.java (91%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/challenges/CH3_FindTwoNoAddingUpToN_Sol_1.java (94%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/challenges/CH3_FindTwoNoAddingUpToN_Sol_2.java (97%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/challenges/CH4_ArrayOFProductsOfAllElementsExceptItself.java (96%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/challenges/CH5_FindMinimumValueInArray.java (94%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/challenges/CH6_FindFirstNonRepeatingIntegerInArray.java (95%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/challenges/CH7_FindSecondMaximumValueInArray_Sol_1.java (96%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/challenges/CH7_FindSecondMaximumValueInArray_Sol_2.java (94%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/challenges/CH8_RightRotateTheArrayByOneIndex.java (93%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_1.java (93%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_2.java (92%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/sorting/CyclicSortEasy.java (97%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{arrays => array}/sorting/QuicksortAlgorithm.java (97%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{hash_tables => hash_table}/PairWithTargetSum.java (99%)
 create mode 100644 app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/hash_table/_hash_tables.md
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{stacks_and_queues => stacks_and_queue}/_stacks_and_queues.md (100%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{tuples => tuple}/Interval.java (85%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{tuples => tuple}/Tuple.java (84%)
 rename app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/{tuples => tuple}/_tuples.md (100%)

diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/ClassTemplate.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/ClassTemplate.java
index d588c1f..7f6ff8d 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/ClassTemplate.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/ClassTemplate.java
@@ -4,7 +4,9 @@
  * <p>
  *
  * @question Problem Statement -
- * @example
+ * @example Example 1:
+ * @example Example 2:
+ * @example Example 3:
  * @note Solution -
  * @note Time Complexity -
  * @note Space Complexity -
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/FindMaximumInSlidingWindow.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/FindMaximumInSlidingWindow.java
similarity index 98%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/FindMaximumInSlidingWindow.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/FindMaximumInSlidingWindow.java
index b8bbde3..28f850f 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/FindMaximumInSlidingWindow.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/FindMaximumInSlidingWindow.java
@@ -11,7 +11,7 @@
  * @author David Kariuki
  * @since 17/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays;
+package AceTheJavaCodingInterview.module2_data_structures.array;
 
 import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/FindTheSmallestCommonNumber.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/FindTheSmallestCommonNumber.java
similarity index 90%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/FindTheSmallestCommonNumber.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/FindTheSmallestCommonNumber.java
index 1410242..dccee74 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/FindTheSmallestCommonNumber.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/FindTheSmallestCommonNumber.java
@@ -3,12 +3,12 @@
  *
  * <p>
  *
- * @question Given three integer arrays sorted in ascending order, return the smallest number found
- *     in all three arrays.
+ * @question Given three integer array sorted in ascending order, return the smallest number found
+ *     in all three array.
  * @author David Kariuki
  * @since 18/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays;
+package AceTheJavaCodingInterview.module2_data_structures.array;
 
 import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/MaximumSumSubarrayOfSizeK.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/MaximumSumSubarrayOfSizeK.java
similarity index 97%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/MaximumSumSubarrayOfSizeK.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/MaximumSumSubarrayOfSizeK.java
index 5cb6b29..91f7502 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/MaximumSumSubarrayOfSizeK.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/MaximumSumSubarrayOfSizeK.java
@@ -22,7 +22,7 @@
  * @author David Kariuki
  * @since 23/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays;
+package AceTheJavaCodingInterview.module2_data_structures.array;
 
 public class MaximumSumSubarrayOfSizeK {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/MergeAnArrayWithOverlappingIntervals.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/MergeAnArrayWithOverlappingIntervals.java
similarity index 96%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/MergeAnArrayWithOverlappingIntervals.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/MergeAnArrayWithOverlappingIntervals.java
index 92ff7ff..2eae12c 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/MergeAnArrayWithOverlappingIntervals.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/MergeAnArrayWithOverlappingIntervals.java
@@ -17,9 +17,9 @@
  * @author David Kariuki
  * @since 22/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays;
+package AceTheJavaCodingInterview.module2_data_structures.array;
 
-import AceTheJavaCodingInterview.module2_data_structures.tuples.Interval;
+import AceTheJavaCodingInterview.module2_data_structures.tuple.Interval;
 
 import java.util.ArrayList;
 import java.util.Arrays;
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/OneDimensionalArrays.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/OneDimensionalArrays.java
similarity index 94%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/OneDimensionalArrays.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/OneDimensionalArrays.java
index 3817ba6..1c7daf0 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/OneDimensionalArrays.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/OneDimensionalArrays.java
@@ -7,7 +7,7 @@
  * @author David Kariuki
  * @since 14/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays;
+package AceTheJavaCodingInterview.module2_data_structures.array;
 
 @SuppressWarnings({"ForLoopReplaceableByForEach", "SameParameterValue"})
 public class OneDimensionalArrays {
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/PairWithTargetSum.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/PairWithTargetSum.java
similarity index 98%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/PairWithTargetSum.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/PairWithTargetSum.java
index e1139bd..da8de83 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/PairWithTargetSum.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/PairWithTargetSum.java
@@ -36,7 +36,7 @@
  * @author David Kariuki
  * @since 24/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays;
+package AceTheJavaCodingInterview.module2_data_structures.array;
 
 public class PairWithTargetSum {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/Permutations.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/Permutations.java
similarity index 95%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/Permutations.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/Permutations.java
index 7e3a1a2..f2f2528 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/Permutations.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/Permutations.java
@@ -39,12 +39,12 @@
  *     and the queue to store the intermediate permutations. If you see closely, at any time, we
  *     don’t have more than N! permutations between the result list and the queue. Therefore, the
  *     overall space complexity to store N! permutations each containing N elements will be O(N*N!).
- * @see AceTheJavaCodingInterview.module2_data_structures.arrays.Subset
- * @see AceTheJavaCodingInterview.module2_data_structures.arrays.SubsetsWithDuplicates
+ * @see AceTheJavaCodingInterview.module2_data_structures.array.Subset
+ * @see AceTheJavaCodingInterview.module2_data_structures.array.SubsetsWithDuplicates
  * @author David Kariuki
  * @since 24/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays;
+package AceTheJavaCodingInterview.module2_data_structures.array;
 
 import java.util.ArrayList;
 import java.util.LinkedList;
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/SmallestSubarrayWithAGreaterSum.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SmallestSubarrayWithAGreaterSum.java
similarity index 97%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/SmallestSubarrayWithAGreaterSum.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SmallestSubarrayWithAGreaterSum.java
index 4413714..64582c6 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/SmallestSubarrayWithAGreaterSum.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SmallestSubarrayWithAGreaterSum.java
@@ -31,7 +31,7 @@
  * @author David Kariuki
  * @since 23/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays;
+package AceTheJavaCodingInterview.module2_data_structures.array;
 
 public class SmallestSubarrayWithAGreaterSum {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/SquaringASortedArray.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SquaringASortedArray.java
similarity index 96%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/SquaringASortedArray.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SquaringASortedArray.java
index 88a1784..20d927e 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/SquaringASortedArray.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SquaringASortedArray.java
@@ -18,7 +18,7 @@
  * @author David Kariuki
  * @since 23/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays;
+package AceTheJavaCodingInterview.module2_data_structures.array;
 
 public class SquaringASortedArray {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/SubArraysWithProductLessThanTarget.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SubArraysWithProductLessThanTarget.java
similarity index 73%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/SubArraysWithProductLessThanTarget.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SubArraysWithProductLessThanTarget.java
index 6dc65fa..1277708 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/SubArraysWithProductLessThanTarget.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SubArraysWithProductLessThanTarget.java
@@ -4,22 +4,22 @@
  * <p>
  *
  * @question Problem Statement - Given an array with positive numbers and a positive target number,
- *     find all of its contiguous sub-arrays whose product is less than the target number.
+ *     find all of its contiguous sub-array whose product is less than the target number.
  * @example Example 1:
  *     <p>Input: [2, 5, 3, 10], target=30 Output: [2], [5], [2, 5], [3], [5, 3], [10] Explanation:
- *     There are six contiguous sub-arrays whose product is less than the target.
+ *     There are six contiguous sub-array whose product is less than the target.
  * @example Example 2:
  *     <p>Input: [8, 2, 6, 5], target=50 Output: [8], [2], [8, 2], [6], [2, 6], [5], [6, 5]
- *     Explanation: There are seven contiguous sub-arrays whose product is less than the target.
+ *     Explanation: There are seven contiguous sub-array whose product is less than the target.
  * @note Solution - This problem follows the Sliding Window and the Two Pointers pattern and shares
  *     similarities with Triplets with Smaller Sum
  *     <p>({@link
- *     AceTheJavaCodingInterview.module2_data_structures.arrays.TripletsWithSmallerSum_ReturnCount},
+ *     AceTheJavaCodingInterview.module2_data_structures.array.TripletsWithSmallerSum_ReturnCount},
  *     {@link
- *     AceTheJavaCodingInterview.module2_data_structures.arrays.TripletsWithSmallerSum_ReturnList})
+ *     AceTheJavaCodingInterview.module2_data_structures.array.TripletsWithSmallerSum_ReturnList})
  *     with two differences:
  *     <p>In this problem, the input array is not sorted. Instead of finding triplets with sum less
- *     than a target, we need to find all sub-arrays having a product less than the target. The
+ *     than a target, we need to find all sub-array having a product less than the target. The
  *     implementation will be quite similar to Triplets with Smaller Sum.
  * @note Time Complexity - The main for-loop managing the sliding window takes O(N) but creating
  *     sub-arrays can take up to O(N^2) in the worst case. Therefore overall, our algorithm will
@@ -28,10 +28,10 @@
  *     O(N) space which is used for the temp list.
  * @author David Kariuki
  * @since 26/8/2022
- * @see AceTheJavaCodingInterview.module2_data_structures.arrays.TripletsWithSmallerSum_ReturnCount
- * @see AceTheJavaCodingInterview.module2_data_structures.arrays.TripletsWithSmallerSum_ReturnList
+ * @see AceTheJavaCodingInterview.module2_data_structures.array.TripletsWithSmallerSum_ReturnCount
+ * @see AceTheJavaCodingInterview.module2_data_structures.array.TripletsWithSmallerSum_ReturnList
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays;
+package AceTheJavaCodingInterview.module2_data_structures.array;
 
 import java.util.ArrayList;
 import java.util.LinkedList;
@@ -52,7 +52,7 @@ public static void main(String[] args) {
   }
 
   /**
-   * Method to find sub arrays
+   * Method to find sub array
    *
    * @param arr - int[]
    * @param target - int
@@ -75,7 +75,7 @@ public static List<List<Integer>> findSubArrays(int[] arr, int target) {
       }
 
       // Since the product of all numbers from left to right is less than the
-      // target therefore, all sub-arrays from left to right will have a
+      // target therefore, all sub-array from left to right will have a
       // product less than the target too; to avoid duplicates, we will start
       // with a sub-array containing only arr[right] and then extend it.
       List<Integer> tempList = new LinkedList<>();
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/Subset.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/Subset.java
similarity index 97%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/Subset.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/Subset.java
index 4811005..44ba879 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/Subset.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/Subset.java
@@ -28,7 +28,7 @@
  * @author David Kariuki
  * @since 23/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays;
+package AceTheJavaCodingInterview.module2_data_structures.array;
 
 import java.util.ArrayList;
 import java.util.List;
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/SubsetsWithDuplicates.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SubsetsWithDuplicates.java
similarity index 98%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/SubsetsWithDuplicates.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SubsetsWithDuplicates.java
index 2f165b5..f127686 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/SubsetsWithDuplicates.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SubsetsWithDuplicates.java
@@ -42,7 +42,7 @@
  * @author David Kariuki
  * @since 24/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays;
+package AceTheJavaCodingInterview.module2_data_structures.array;
 
 import java.util.ArrayList;
 import java.util.Arrays;
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/TripletSumCloseToTarget.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TripletSumCloseToTarget.java
similarity index 92%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/TripletSumCloseToTarget.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TripletSumCloseToTarget.java
index 0fec2ee..dfb2d49 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/TripletSumCloseToTarget.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TripletSumCloseToTarget.java
@@ -9,7 +9,7 @@
  *     the smallest sum.
  * @note Solution - This problem follows the Two Pointers pattern and is quite similar to Triplet
  *     Sum to Zero({@link
- *     AceTheJavaCodingInterview.module2_data_structures.arrays.TripletSumToZero}).
+ *     AceTheJavaCodingInterview.module2_data_structures.array.TripletSumToZero}).
  *     <p>We can follow a similar approach to iterate through the array, taking one number at a
  *     time. At every step, we will save the difference between the triplet and the target number,
  *     so that in the end, we can return the triplet with the closest sum.
@@ -19,9 +19,9 @@
  *     for sorting.
  * @author David Kariuki
  * @since 25/8/2022
- * @see AceTheJavaCodingInterview.module2_data_structures.arrays.TripletSumToZero
+ * @see AceTheJavaCodingInterview.module2_data_structures.array.TripletSumToZero
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays;
+package AceTheJavaCodingInterview.module2_data_structures.array;
 
 import java.util.Arrays;
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/TripletSumToZero.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TripletSumToZero.java
similarity index 91%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/TripletSumToZero.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TripletSumToZero.java
index b952c9e..da9b123 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/TripletSumToZero.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TripletSumToZero.java
@@ -14,7 +14,7 @@
  *     unique triplets whose sum is equal to zero.
  * @solution Solution - This problem follows the Two Pointers pattern and shares similarities with
  *     Pair with Target Sum ({@link
- *     AceTheJavaCodingInterview.module2_data_structures.arrays.PairWithTargetSum}). A couple of
+ *     AceTheJavaCodingInterview.module2_data_structures.array.PairWithTargetSum}). A couple of
  *     differences are that the input array is not sorted and instead of a pair we need to find
  *     triplets with a target sum of zero.
  *     <p>To follow a similar approach, first, we will sort the array and then iterate through it
@@ -23,7 +23,7 @@
  *     finding a pair whose sum is equal to -X (as from the above equation Y + Z == -X).
  *     <p>
  *     <p>Another difference from Pair with Target Sum({@link
- *     AceTheJavaCodingInterview.module2_data_structures.arrays.PairWithTargetSum}) is that we need
+ *     AceTheJavaCodingInterview.module2_data_structures.array.PairWithTargetSum}) is that we need
  *     to find all the unique triplets. To handle this, we have to skip any duplicate number. Since
  *     we will be sorting the array, so all the duplicate numbers will be next to each other and are
  *     easier to skip.
@@ -33,12 +33,12 @@
  *     to O(N^2).
  * @note Space complexity - Ignoring the space required for the output array, the space complexity
  *     of the above algorithm will be O(N) which is required for sorting.
- * @see AceTheJavaCodingInterview.module2_data_structures.arrays.PairWithTargetSum
- * @see AceTheJavaCodingInterview.module2_data_structures.hash_tables.PairWithTargetSum
+ * @see AceTheJavaCodingInterview.module2_data_structures.array.PairWithTargetSum
+ * @see AceTheJavaCodingInterview.module2_data_structures.hash_table.PairWithTargetSum
  * @author David Kariuki
  * @since 25/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays;
+package AceTheJavaCodingInterview.module2_data_structures.array;
 
 import java.util.ArrayList;
 import java.util.Arrays;
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/TripletsWithSmallerSum_ReturnCount.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TripletsWithSmallerSum_ReturnCount.java
similarity index 95%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/TripletsWithSmallerSum_ReturnCount.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TripletsWithSmallerSum_ReturnCount.java
index 120606d..1f13471 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/TripletsWithSmallerSum_ReturnCount.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TripletsWithSmallerSum_ReturnCount.java
@@ -17,9 +17,9 @@
  *     of the above algorithm will be O(N) which is required for sorting.
  * @author David Kariuki
  * @since 26/8/2022
- * @see AceTheJavaCodingInterview.module2_data_structures.arrays.TripletSumToZero
+ * @see AceTheJavaCodingInterview.module2_data_structures.array.TripletSumToZero
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays;
+package AceTheJavaCodingInterview.module2_data_structures.array;
 
 import java.util.ArrayList;
 import java.util.Arrays;
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/TripletsWithSmallerSum_ReturnList.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TripletsWithSmallerSum_ReturnList.java
similarity index 93%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/TripletsWithSmallerSum_ReturnList.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TripletsWithSmallerSum_ReturnList.java
index 8e63503..8165357 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/TripletsWithSmallerSum_ReturnList.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TripletsWithSmallerSum_ReturnList.java
@@ -14,7 +14,7 @@
  *     is less than the target: [-1, 1, 4], [-1, 1, 3], [-1, 1, 2], [-1, 2, 3]
  * @note Solution - This problem follows the Two Pointers pattern and shares similarities with
  *     Triplet Sum to Zero ({@link
- *     AceTheJavaCodingInterview.module2_data_structures.arrays.TripletSumToZero}). The only
+ *     AceTheJavaCodingInterview.module2_data_structures.array.TripletSumToZero}). The only
  *     difference is that, in this problem, we need to find the triplets whose sum is less than the
  *     given target. To meet the condition i != j != k we need to make sure that each number is not
  *     used more than once.
@@ -31,9 +31,9 @@
  *     required for sorting if we are not using an in-place sorting algorithm.
  * @author David Kariuki
  * @since 26/8/2022
- * @see AceTheJavaCodingInterview.module2_data_structures.arrays.TripletSumToZero
+ * @see AceTheJavaCodingInterview.module2_data_structures.array.TripletSumToZero
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays;
+package AceTheJavaCodingInterview.module2_data_structures.array;
 
 import java.util.Arrays;
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/TwoDimensionalArrays.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TwoDimensionalArrays.java
similarity index 91%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/TwoDimensionalArrays.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TwoDimensionalArrays.java
index 15b2af0..68c1b4c 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/TwoDimensionalArrays.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TwoDimensionalArrays.java
@@ -7,7 +7,7 @@
  * @author David Kariuki
  * @since 14/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays;
+package AceTheJavaCodingInterview.module2_data_structures.array;
 
 @SuppressWarnings("SameParameterValue")
 public class TwoDimensionalArrays {
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/_arrays.md b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/_arrays.md
similarity index 100%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/_arrays.md
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/_arrays.md
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/BinarySearchOnSortedArray_Iterative.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/BinarySearchOnSortedArray_Iterative.java
similarity index 95%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/BinarySearchOnSortedArray_Iterative.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/BinarySearchOnSortedArray_Iterative.java
index 689cad9..f8f2279 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/BinarySearchOnSortedArray_Iterative.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/BinarySearchOnSortedArray_Iterative.java
@@ -9,7 +9,7 @@
  * @author David Kariuki
  * @since 17/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays.binary_search;
+package AceTheJavaCodingInterview.module2_data_structures.array.binary_search;
 
 public class BinarySearchOnSortedArray_Iterative {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/BinarySearchOnSortedArray_Recursive.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/BinarySearchOnSortedArray_Recursive.java
similarity index 97%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/BinarySearchOnSortedArray_Recursive.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/BinarySearchOnSortedArray_Recursive.java
index d31c5bb..ef54fa1 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/BinarySearchOnSortedArray_Recursive.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/BinarySearchOnSortedArray_Recursive.java
@@ -10,7 +10,7 @@
  * @author David Kariuki
  * @since 17/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays.binary_search;
+package AceTheJavaCodingInterview.module2_data_structures.array.binary_search;
 
 import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/BitonicArrayMaximum.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/BitonicArrayMaximum.java
similarity index 97%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/BitonicArrayMaximum.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/BitonicArrayMaximum.java
index 17d99b2..57046c4 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/BitonicArrayMaximum.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/BitonicArrayMaximum.java
@@ -33,7 +33,7 @@
  * @author David Kariuki
  * @since 24/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays.binary_search;
+package AceTheJavaCodingInterview.module2_data_structures.array.binary_search;
 
 public class BitonicArrayMaximum {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/FindLowOrHighIndexOfAnElementInSortedArray.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/FindLowOrHighIndexOfAnElementInSortedArray.java
similarity index 97%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/FindLowOrHighIndexOfAnElementInSortedArray.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/FindLowOrHighIndexOfAnElementInSortedArray.java
index 16e6ec8..ff176a8 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/FindLowOrHighIndexOfAnElementInSortedArray.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/FindLowOrHighIndexOfAnElementInSortedArray.java
@@ -17,7 +17,7 @@
  * @author David Kariuki
  * @since /8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays.binary_search;
+package AceTheJavaCodingInterview.module2_data_structures.array.binary_search;
 
 import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/MoveAllZerosToTheBeginningOfTheArray.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/MoveAllZerosToTheBeginningOfTheArray.java
similarity index 96%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/MoveAllZerosToTheBeginningOfTheArray.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/MoveAllZerosToTheBeginningOfTheArray.java
index 6418c4b..e6d9a01 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/MoveAllZerosToTheBeginningOfTheArray.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/MoveAllZerosToTheBeginningOfTheArray.java
@@ -7,7 +7,7 @@
  * @author David Kariuki
  * @since 18/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays.binary_search;
+package AceTheJavaCodingInterview.module2_data_structures.array.binary_search;
 
 import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/OrderAgnosticBinarySearch.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/OrderAgnosticBinarySearch.java
similarity index 98%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/OrderAgnosticBinarySearch.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/OrderAgnosticBinarySearch.java
index 4a57b3a..6a42012 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/OrderAgnosticBinarySearch.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/OrderAgnosticBinarySearch.java
@@ -47,7 +47,7 @@
  * @author David Kariuki
  * @since 24/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays.binary_search;
+package AceTheJavaCodingInterview.module2_data_structures.array.binary_search;
 
 public class OrderAgnosticBinarySearch {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/SearchRotatedArray_Iteratively.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/SearchRotatedArray_Iteratively.java
similarity index 96%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/SearchRotatedArray_Iteratively.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/SearchRotatedArray_Iteratively.java
index f40f5ec..7e22a53 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/SearchRotatedArray_Iteratively.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/SearchRotatedArray_Iteratively.java
@@ -10,7 +10,7 @@
  * @author David Kariuki
  * @since 18/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays.binary_search;
+package AceTheJavaCodingInterview.module2_data_structures.array.binary_search;
 
 import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/SearchRotatedArray_Recursive.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/SearchRotatedArray_Recursive.java
similarity index 96%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/SearchRotatedArray_Recursive.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/SearchRotatedArray_Recursive.java
index 5f1407c..06ebcc2 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/SearchRotatedArray_Recursive.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/SearchRotatedArray_Recursive.java
@@ -10,7 +10,7 @@
  * @author David Kariuki
  * @since 18/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays.binary_search;
+package AceTheJavaCodingInterview.module2_data_structures.array.binary_search;
 
 import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/StockBuySellToMaximizeProfit.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/StockBuySellToMaximizeProfit.java
similarity index 95%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/StockBuySellToMaximizeProfit.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/StockBuySellToMaximizeProfit.java
index ae036ba..32b16ce 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/binary_search/StockBuySellToMaximizeProfit.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/StockBuySellToMaximizeProfit.java
@@ -15,9 +15,9 @@
  * @author David Kariuki
  * @since 18/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays.binary_search;
+package AceTheJavaCodingInterview.module2_data_structures.array.binary_search;
 
-import AceTheJavaCodingInterview.module2_data_structures.tuples.Tuple;
+import AceTheJavaCodingInterview.module2_data_structures.tuple.Tuple;
 import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
 
 @SuppressWarnings("UnusedAssignment")
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_1.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_1.java
similarity index 96%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_1.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_1.java
index dab885e..a2b6fb2 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_1.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_1.java
@@ -9,7 +9,7 @@
  * @author David Kariuki
  * @since 16/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays.challenges;
+package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
 
 import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_2.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_2.java
similarity index 95%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_2.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_2.java
index a8fc506..6ba70f3 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_2.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_2.java
@@ -9,7 +9,7 @@
  * @author David Kariuki
  * @since 16/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays.challenges;
+package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
 
 public class CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_2 {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH11_FindTheSumOfMaximumSumSubarray.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH11_FindTheSumOfMaximumSumSubarray.java
similarity index 96%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH11_FindTheSumOfMaximumSumSubarray.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH11_FindTheSumOfMaximumSumSubarray.java
index 3e23209..f12d883 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH11_FindTheSumOfMaximumSumSubarray.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH11_FindTheSumOfMaximumSumSubarray.java
@@ -16,7 +16,7 @@
  * @author David Kariuki
  * @since 17/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays.challenges;
+package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
 
 import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH1_RemoveEvenFromArray.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH1_RemoveEvenFromArray.java
similarity index 95%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH1_RemoveEvenFromArray.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH1_RemoveEvenFromArray.java
index f400b74..cf22c83 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH1_RemoveEvenFromArray.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH1_RemoveEvenFromArray.java
@@ -8,7 +8,7 @@
  * @author David Kariuki
  * @since 14/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays.challenges;
+package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
 
 public class CH1_RemoveEvenFromArray {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH2_MergeTwoSortedArrays.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH2_MergeTwoSortedArrays.java
similarity index 91%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH2_MergeTwoSortedArrays.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH2_MergeTwoSortedArrays.java
index eca409d..45c3cd7 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH2_MergeTwoSortedArrays.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH2_MergeTwoSortedArrays.java
@@ -9,7 +9,7 @@
  * @author David Kariuki
  * @since 14/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays.challenges;
+package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
 
 public class CH2_MergeTwoSortedArrays {
 
@@ -35,7 +35,7 @@ public static void main(String[] args) {
    * Method to remove even numbers from array
    *
    * <p>The time complexity for this algorithm is O(n+m), where n and m are the * sizes of arr1 and
-   * arr2, respectively. This is because both arrays are iterated over once.
+   * arr2, respectively. This is because both array are iterated over once.
    *
    * @param arr1 - Array1
    * @param arr2 - Array2
@@ -49,7 +49,7 @@ public static int[] mergeArrays(int[] arr1, int[] arr2) {
 
     int i = 0, j = 0, k = 0;
 
-    // Traverse both arrays
+    // Traverse both array
     while (i < arr1Length && j < arr2Length) {
 
       // Check if current element of first array is smaller than current
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH3_FindTwoNoAddingUpToN_Sol_1.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_1.java
similarity index 94%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH3_FindTwoNoAddingUpToN_Sol_1.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_1.java
index a96b3b5..9d87377 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH3_FindTwoNoAddingUpToN_Sol_1.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_1.java
@@ -9,7 +9,7 @@
  * @author David Kariuki
  * @since 14/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays.challenges;
+package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
 
 public class CH3_FindTwoNoAddingUpToN_Sol_1 {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH3_FindTwoNoAddingUpToN_Sol_2.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_2.java
similarity index 97%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH3_FindTwoNoAddingUpToN_Sol_2.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_2.java
index ec457f9..32c3451 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH3_FindTwoNoAddingUpToN_Sol_2.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_2.java
@@ -9,7 +9,7 @@
  * @author David Kariuki
  * @since 14/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays.challenges;
+package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
 
 public class CH3_FindTwoNoAddingUpToN_Sol_2 {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH4_ArrayOFProductsOfAllElementsExceptItself.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH4_ArrayOFProductsOfAllElementsExceptItself.java
similarity index 96%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH4_ArrayOFProductsOfAllElementsExceptItself.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH4_ArrayOFProductsOfAllElementsExceptItself.java
index 5c2fc35..16284e9 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH4_ArrayOFProductsOfAllElementsExceptItself.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH4_ArrayOFProductsOfAllElementsExceptItself.java
@@ -8,7 +8,7 @@
  * @author David Kariuki
  * @since 16/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays.challenges;
+package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
 
 import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH5_FindMinimumValueInArray.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH5_FindMinimumValueInArray.java
similarity index 94%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH5_FindMinimumValueInArray.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH5_FindMinimumValueInArray.java
index 5f54b79..13af1ff 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH5_FindMinimumValueInArray.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH5_FindMinimumValueInArray.java
@@ -7,7 +7,7 @@
  * @author David Kariuki
  * @since 16/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays.challenges;
+package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
 
 import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH6_FindFirstNonRepeatingIntegerInArray.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH6_FindFirstNonRepeatingIntegerInArray.java
similarity index 95%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH6_FindFirstNonRepeatingIntegerInArray.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH6_FindFirstNonRepeatingIntegerInArray.java
index 7af67fd..1ed835c 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH6_FindFirstNonRepeatingIntegerInArray.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH6_FindFirstNonRepeatingIntegerInArray.java
@@ -9,7 +9,7 @@
  * @author David Kariuki
  * @since 16/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays.challenges;
+package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
 
 import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH7_FindSecondMaximumValueInArray_Sol_1.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH7_FindSecondMaximumValueInArray_Sol_1.java
similarity index 96%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH7_FindSecondMaximumValueInArray_Sol_1.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH7_FindSecondMaximumValueInArray_Sol_1.java
index ee6d075..bc347e9 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH7_FindSecondMaximumValueInArray_Sol_1.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH7_FindSecondMaximumValueInArray_Sol_1.java
@@ -7,7 +7,7 @@
  * @author David Kariuki
  * @since 16/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays.challenges;
+package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
 
 import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH7_FindSecondMaximumValueInArray_Sol_2.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH7_FindSecondMaximumValueInArray_Sol_2.java
similarity index 94%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH7_FindSecondMaximumValueInArray_Sol_2.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH7_FindSecondMaximumValueInArray_Sol_2.java
index 8b4208f..65a3f5a 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH7_FindSecondMaximumValueInArray_Sol_2.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH7_FindSecondMaximumValueInArray_Sol_2.java
@@ -7,7 +7,7 @@
  * @author David Kariuki
  * @since 16/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays.challenges;
+package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
 
 import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH8_RightRotateTheArrayByOneIndex.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH8_RightRotateTheArrayByOneIndex.java
similarity index 93%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH8_RightRotateTheArrayByOneIndex.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH8_RightRotateTheArrayByOneIndex.java
index 8e290f3..4560111 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH8_RightRotateTheArrayByOneIndex.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH8_RightRotateTheArrayByOneIndex.java
@@ -7,7 +7,7 @@
  * @author David Kariuki
  * @since 16/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays.challenges;
+package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
 
 public class CH8_RightRotateTheArrayByOneIndex {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_1.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_1.java
similarity index 93%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_1.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_1.java
index 6374177..cfe9815 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_1.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_1.java
@@ -7,7 +7,7 @@
  * @author David Kariuki
  * @since 16/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays.challenges;
+package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
 
 import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_2.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_2.java
similarity index 92%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_2.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_2.java
index ca76d6e..990be87 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_2.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_2.java
@@ -7,7 +7,7 @@
  * @author David Kariuki
  * @since 16/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays.challenges;
+package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
 
 import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/sorting/CyclicSortEasy.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/sorting/CyclicSortEasy.java
similarity index 97%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/sorting/CyclicSortEasy.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/sorting/CyclicSortEasy.java
index 71fdf05..b2cf517 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/sorting/CyclicSortEasy.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/sorting/CyclicSortEasy.java
@@ -34,7 +34,7 @@
  * @author David Kariuki
  * @since 23/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays.sorting;
+package AceTheJavaCodingInterview.module2_data_structures.array.sorting;
 
 public class CyclicSortEasy {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/sorting/QuicksortAlgorithm.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/sorting/QuicksortAlgorithm.java
similarity index 97%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/sorting/QuicksortAlgorithm.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/sorting/QuicksortAlgorithm.java
index 67f000b..7cd92e8 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/arrays/sorting/QuicksortAlgorithm.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/sorting/QuicksortAlgorithm.java
@@ -18,7 +18,7 @@
  * @author David Kariuki
  * @since 23/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.arrays.sorting;
+package AceTheJavaCodingInterview.module2_data_structures.array.sorting;
 
 import java.util.Arrays;
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/hash_tables/PairWithTargetSum.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/hash_table/PairWithTargetSum.java
similarity index 99%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/hash_tables/PairWithTargetSum.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/hash_table/PairWithTargetSum.java
index 9a11767..855fe5d 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/hash_tables/PairWithTargetSum.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/hash_table/PairWithTargetSum.java
@@ -26,7 +26,7 @@
  * @author David Kariuki
  * @since 24/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.hash_tables;
+package AceTheJavaCodingInterview.module2_data_structures.hash_table;
 
 import java.util.HashMap;
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/hash_table/_hash_tables.md b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/hash_table/_hash_tables.md
new file mode 100644
index 0000000..e69de29
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/stacks_and_queues/_stacks_and_queues.md b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/stacks_and_queue/_stacks_and_queues.md
similarity index 100%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/stacks_and_queues/_stacks_and_queues.md
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/stacks_and_queue/_stacks_and_queues.md
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/tuples/Interval.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/tuple/Interval.java
similarity index 85%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/tuples/Interval.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/tuple/Interval.java
index 670dfb5..8cbd538 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/tuples/Interval.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/tuple/Interval.java
@@ -7,7 +7,7 @@
  * @author David Kariuki
  * @since 22/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.tuples;
+package AceTheJavaCodingInterview.module2_data_structures.tuple;
 
 public class Interval {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/tuples/Tuple.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/tuple/Tuple.java
similarity index 84%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/tuples/Tuple.java
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/tuple/Tuple.java
index e8e09cd..65c196b 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/tuples/Tuple.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/tuple/Tuple.java
@@ -7,7 +7,7 @@
  * @author David Kariuki
  * @since 18/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.tuples;
+package AceTheJavaCodingInterview.module2_data_structures.tuple;
 
 public class Tuple<X, Y> {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/tuples/_tuples.md b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/tuple/_tuples.md
similarity index 100%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/tuples/_tuples.md
rename to app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/tuple/_tuples.md

From d8b73d749ca6e622d195d43f233c11810d6a078d Mon Sep 17 00:00:00 2001
From: dk <workplace.davidkariuki@gmail.com>
Date: Wed, 7 Sep 2022 12:52:16 +0300
Subject: [PATCH 6/9] refactor: refactor

refactor package names

Signed-off-by: dk <workplace.davidkariuki@gmail.com>
---
 .../module2_data_structures/array/Permutations.java         | 6 +++---
 .../array/SubArraysWithProductLessThanTarget.java           | 4 ++--
 .../binary_search/BinarySearchOnSortedArray_Recursive.java  | 3 +--
 .../array/challenges/CH1_RemoveEvenFromArray.java           | 4 ++--
 .../array/challenges/CH2_MergeTwoSortedArrays.java          | 5 ++---
 .../array/challenges/CH3_FindTwoNoAddingUpToN_Sol_1.java    | 5 ++---
 .../array/challenges/CH3_FindTwoNoAddingUpToN_Sol_2.java    | 5 ++---
 .../challenges/CH6_FindFirstNonRepeatingIntegerInArray.java | 5 ++---
 8 files changed, 16 insertions(+), 21 deletions(-)

diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/Permutations.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/Permutations.java
index f2f2528..c885c7c 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/Permutations.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/Permutations.java
@@ -9,9 +9,9 @@
  *     <p>{1, 2, 3} {1, 3, 2} {2, 1, 3} {2, 3, 1} {3, 1, 2} {3, 2, 1}
  *     <p>If a set has n distinct elements it will have n! n! permutations.
  * @note Solution This problem follows the Subsets pattern ({@link
- *     AceTheJavaCodingInterview.module2_data_structures.arrays.Subset}) and, we can follow a
- *     similar Breadth First Search (BFS) approach. However, unlike Subsets, every permutation must
- *     contain all the numbers.
+ *     AceTheJavaCodingInterview.module2_data_structures.array.Subset}) and, we can follow a similar
+ *     Breadth First Search (BFS) approach. However, unlike Subsets, every permutation must contain
+ *     all the numbers.
  *     <p>Let’s take the example-1 mentioned above to generate all the permutations. Following a BFS
  *     approach, we will consider one number at a time:
  *     <p>1. If the given set is empty then we have only an empty permutation set: []
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SubArraysWithProductLessThanTarget.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SubArraysWithProductLessThanTarget.java
index 1277708..0f8a141 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SubArraysWithProductLessThanTarget.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SubArraysWithProductLessThanTarget.java
@@ -22,8 +22,8 @@
  *     than a target, we need to find all sub-array having a product less than the target. The
  *     implementation will be quite similar to Triplets with Smaller Sum.
  * @note Time Complexity - The main for-loop managing the sliding window takes O(N) but creating
- *     sub-arrays can take up to O(N^2) in the worst case. Therefore overall, our algorithm will
- *     take O(N^3).
+ *     sub-array can take up to O(N^2) in the worst case. Therefore overall, our algorithm will take
+ *     O(N^3).
  * @note Space Complexity - Ignoring the space required for the output list, the algorithm runs in
  *     O(N) space which is used for the temp list.
  * @author David Kariuki
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/BinarySearchOnSortedArray_Recursive.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/BinarySearchOnSortedArray_Recursive.java
index ef54fa1..f09e1cb 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/BinarySearchOnSortedArray_Recursive.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/BinarySearchOnSortedArray_Recursive.java
@@ -5,8 +5,7 @@
  *
  * @question We are given an array of integers, nums, sorted in ascending order, and an integer *
  *     value, target. If the target exists in the array, return its index. If the target does not *
- *     exist, then return -1.
- *     This class uses Recursion.
+ *     exist, then return -1. This class uses Recursion.
  * @author David Kariuki
  * @since 17/8/2022
  */
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH1_RemoveEvenFromArray.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH1_RemoveEvenFromArray.java
index cf22c83..7718fe0 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH1_RemoveEvenFromArray.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH1_RemoveEvenFromArray.java
@@ -3,8 +3,8 @@
  *
  * <p>
  *
- * @note Challenge 1: Remove Even Integers from an Array.
- * Given an array of size n, remove all even integers from it.
+ * @note Challenge 1: Remove Even Integers from an Array. Given an array of size n, remove all even
+ *     integers from it.
  * @author David Kariuki
  * @since 14/8/2022
  */
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH2_MergeTwoSortedArrays.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH2_MergeTwoSortedArrays.java
index 45c3cd7..878f059 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH2_MergeTwoSortedArrays.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH2_MergeTwoSortedArrays.java
@@ -3,9 +3,8 @@
  *
  * <p>
  *
- * @note Challenge 2: Merge Two Sorted Arrays
- * Given two sorted arrays, merge them into one array, which should also
- * be sorted.
+ * @note Challenge 2: Merge Two Sorted Arrays Given two sorted array, merge them into one array,
+ *     which should also be sorted.
  * @author David Kariuki
  * @since 14/8/2022
  */
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_1.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_1.java
index 9d87377..b361a27 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_1.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_1.java
@@ -3,9 +3,8 @@
  *
  * <p>
  *
- * @note Challenge 2: Merge Two Sorted Arrays
- * Given an array and a number "n", find two numbers from the array that
- * sums up to "n".
+ * @note Challenge 2: Merge Two Sorted Arrays Given an array and a number "n", find two numbers from
+ *     the array that sums up to "n".
  * @author David Kariuki
  * @since 14/8/2022
  */
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_2.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_2.java
index 32c3451..5668396 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_2.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_2.java
@@ -3,9 +3,8 @@
  *
  * <p>
  *
- * @note Challenge 2: Merge Two Sorted Arrays
- * Given an array and a number "n", find two numbers from the array that
- * sums up to "n".
+ * @note Challenge 2: Merge Two Sorted Arrays Given an array and a number "n", find two numbers from
+ *     the array that sums up to "n".
  * @author David Kariuki
  * @since 14/8/2022
  */
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH6_FindFirstNonRepeatingIntegerInArray.java b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH6_FindFirstNonRepeatingIntegerInArray.java
index 1ed835c..7f5736b 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH6_FindFirstNonRepeatingIntegerInArray.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH6_FindFirstNonRepeatingIntegerInArray.java
@@ -3,9 +3,8 @@
  *
  * <p>
  *
- * @note Given an array, find the first integer, which is unique in the array.
- * Unique means the number does not repeat and appears only once in the
- * whole array.
+ * @note Given an array, find the first integer, which is unique in the array. Unique means the
+ *     number does not repeat and appears only once in the whole array.
  * @author David Kariuki
  * @since 16/8/2022
  */

From 9d27bd444cbe8bcb2c7e01154187702c8892e36c Mon Sep 17 00:00:00 2001
From: dk <workplace.davidkariuki@gmail.com>
Date: Wed, 7 Sep 2022 13:08:27 +0300
Subject: [PATCH 7/9] chore: config

modify project configuration

Signed-off-by: dk <workplace.davidkariuki@gmail.com>
---
 .idea/codestream.xml |   2 +-
 .idea/workspace.xml  | 189 +++++++++++++++++++++++++++----------------
 2 files changed, 121 insertions(+), 70 deletions(-)

diff --git a/.idea/codestream.xml b/.idea/codestream.xml
index 396df6a..608fecf 100644
--- a/.idea/codestream.xml
+++ b/.idea/codestream.xml
@@ -2,6 +2,6 @@
 <project version="4">
   <component name="CodeStream">
     <option name="teamId" value="5f974fd585a2f13adc789a70" />
-    <option name="webViewContext" value="{&quot;chatProviderAccess&quot;:&quot;strict&quot;,&quot;newPostEntryPoint&quot;:&quot;JB Commit Detected&quot;,&quot;currentTeamId&quot;:&quot;5f974fd585a2f13adc789a70&quot;,&quot;currentStreamId&quot;:&quot;&quot;,&quot;pullRequestCheckoutBranch&quot;:false,&quot;isRepositioning&quot;:false,&quot;onboardStep&quot;:0,&quot;panelStack&quot;:[&quot;new-review&quot;,&quot;landing-redirect&quot;],&quot;hasFocus&quot;:true,&quot;channelFilter&quot;:&quot;all&quot;,&quot;channelsMuteAll&quot;:false,&quot;codemarkFileFilter&quot;:&quot;all&quot;,&quot;codemarkTypeFilter&quot;:&quot;all&quot;,&quot;codemarkTagFilter&quot;:&quot;all&quot;,&quot;codemarkBranchFilter&quot;:&quot;all&quot;,&quot;codemarkAuthorFilter&quot;:&quot;all&quot;,&quot;codemarksFileViewStyle&quot;:&quot;inline&quot;,&quot;codemarksShowArchived&quot;:false,&quot;codemarksShowResolved&quot;:false,&quot;codemarksWrapComments&quot;:false,&quot;showFeedbackSmiley&quot;:true,&quot;route&quot;:{&quot;name&quot;:&quot;providerAuth&quot;,&quot;params&quot;:{&quot;mode&quot;:&quot;strict&quot;,&quot;provider&quot;:&quot;github&quot;}},&quot;spatialViewShowPRComments&quot;:false,&quot;currentPullRequestNeedsRefresh&quot;:{&quot;needsRefresh&quot;:false,&quot;providerId&quot;:&quot;&quot;,&quot;pullRequestId&quot;:&quot;&quot;},&quot;__teamless__&quot;:{&quot;selectedRegion&quot;:&quot;us&quot;},&quot;sessionStart&quot;:1662539236842,&quot;isFirstPageview&quot;:false,&quot;currentReviewId&quot;:&quot;&quot;,&quot;currentReviewOptions&quot;:{&quot;includeLatestCommit&quot;:true}}" />
+    <option name="webViewContext" value="{&quot;chatProviderAccess&quot;:&quot;strict&quot;,&quot;currentTeamId&quot;:&quot;5f974fd585a2f13adc789a70&quot;,&quot;currentStreamId&quot;:&quot;&quot;,&quot;pullRequestCheckoutBranch&quot;:false,&quot;isRepositioning&quot;:false,&quot;onboardStep&quot;:0,&quot;panelStack&quot;:[&quot;landing-redirect&quot;],&quot;hasFocus&quot;:true,&quot;channelFilter&quot;:&quot;all&quot;,&quot;channelsMuteAll&quot;:false,&quot;codemarkFileFilter&quot;:&quot;all&quot;,&quot;codemarkTypeFilter&quot;:&quot;all&quot;,&quot;codemarkTagFilter&quot;:&quot;all&quot;,&quot;codemarkBranchFilter&quot;:&quot;all&quot;,&quot;codemarkAuthorFilter&quot;:&quot;all&quot;,&quot;codemarksFileViewStyle&quot;:&quot;inline&quot;,&quot;codemarksShowArchived&quot;:false,&quot;codemarksShowResolved&quot;:false,&quot;codemarksWrapComments&quot;:false,&quot;showFeedbackSmiley&quot;:true,&quot;route&quot;:{&quot;name&quot;:&quot;providerAuth&quot;,&quot;params&quot;:{&quot;mode&quot;:&quot;strict&quot;,&quot;provider&quot;:&quot;github&quot;}},&quot;spatialViewShowPRComments&quot;:false,&quot;currentPullRequestNeedsRefresh&quot;:{&quot;needsRefresh&quot;:false,&quot;providerId&quot;:&quot;&quot;,&quot;pullRequestId&quot;:&quot;&quot;},&quot;__teamless__&quot;:{&quot;selectedRegion&quot;:&quot;us&quot;},&quot;sessionStart&quot;:1662539236842,&quot;isFirstPageview&quot;:false,&quot;currentReviewId&quot;:&quot;&quot;,&quot;currentReviewOptions&quot;:{&quot;includeLatestCommit&quot;:true}}" />
   </component>
 </project>
\ No newline at end of file
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 61031aa..3176f25 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -4,17 +4,31 @@
     <option name="autoReloadType" value="SELECTIVE" />
   </component>
   <component name="ChangeListManager">
-    <list default="true" id="c6cd90a1-81ca-43ac-9545-e77e106ae078" name="changes" comment="feat(package): add code to find the smallest common number&#10;&#10;Given 3 int arrays sorted in asc order, return the smallest number found in all three arrays&#10;&#10;closes #38" />
-    <list id="ae46ed5c-9428-478d-a42f-255ba9fecbf4" name="bug" comment="fix: permutation&#10;&#10;fix permutation method" />
-    <list id="2ba4749a-a363-4d1c-b99b-337f7e342307" name="config" comment="chore: config&#10;&#10;add project configuration" />
-    <list id="5cd8dfbc-67cf-4aa9-94a4-8500dee0ca36" name="docs" comment="docs: updated file&#10;&#10;update md file">
+    <list default="true" id="c6cd90a1-81ca-43ac-9545-e77e106ae078" name="changes" comment="feat(package): add code to find the smallest common number&#10;&#10;Given 3 int arrays sorted in asc order, return the smallest number found in all three arrays&#10;&#10;closes #38">
+      <changelist_data name="David Kariuki (DK)" email="dkaris.k@gmail.com" />
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From dcec5a0469ffcd0510a733eda844d9008fa72a83 Mon Sep 17 00:00:00 2001
From: dk <workplace.davidkariuki@gmail.com>
Date: Wed, 7 Sep 2022 13:08:56 +0300
Subject: [PATCH 8/9] refactor: refactor

refactor package names

Signed-off-by: dk <workplace.davidkariuki@gmail.com>
---
 .../BigONestedLoopWithAddition.java                        | 7 +++----
 .../BigONestedLoopWithMultiplication.java                  | 7 +++----
 .../BigONestedLoopWithSubtraction.java                     | 7 +++----
 .../_big_o_notation_formulae.md                            | 0
 .../problem_sets/ProblemSet1.java                          | 4 ++--
 .../problem_sets/ProblemSet2.java                          | 5 ++---
 .../ClassTemplate.java                                     | 4 ++--
 .../array/FindMaximumInSlidingWindow.java                  | 4 ++--
 .../array/FindTheSmallestCommonNumber.java                 | 4 ++--
 .../array/MaximumSumSubarrayOfSizeK.java                   | 2 +-
 .../array/MergeAnArrayWithOverlappingIntervals.java        | 4 ++--
 .../array/OneDimensionalArrays.java                        | 2 +-
 .../array/PairWithTargetSum.java                           | 2 +-
 .../array/Permutations.java                                | 6 +++---
 .../array/SmallestSubarrayWithAGreaterSum.java             | 2 +-
 .../array/SquaringASortedArray.java                        | 2 +-
 .../array/SubArraysWithProductLessThanTarget.java          | 6 +++---
 .../array/Subset.java                                      | 2 +-
 .../array/SubsetsWithDuplicates.java                       | 2 +-
 .../array/TripletSumCloseToTarget.java                     | 4 ++--
 .../array/TripletSumToZero.java                            | 6 +++---
 .../array/TripletsWithSmallerSum_ReturnCount.java          | 4 ++--
 .../array/TripletsWithSmallerSum_ReturnList.java           | 4 ++--
 .../array/TwoDimensionalArrays.java                        | 2 +-
 .../array/_arrays.md                                       | 0
 .../binary_search/BinarySearchOnSortedArray_Iterative.java | 2 +-
 .../binary_search/BinarySearchOnSortedArray_Recursive.java | 4 ++--
 .../array/binary_search/BitonicArrayMaximum.java           | 2 +-
 .../FindLowOrHighIndexOfAnElementInSortedArray.java        | 4 ++--
 .../MoveAllZerosToTheBeginningOfTheArray.java              | 4 ++--
 .../array/binary_search/OrderAgnosticBinarySearch.java     | 2 +-
 .../binary_search/SearchRotatedArray_Iteratively.java      | 4 ++--
 .../array/binary_search/SearchRotatedArray_Recursive.java  | 4 ++--
 .../array/binary_search/StockBuySellToMaximizeProfit.java  | 6 +++---
 .../CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_1.java     | 4 ++--
 .../CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_2.java     | 2 +-
 .../challenges/CH11_FindTheSumOfMaximumSumSubarray.java    | 4 ++--
 .../array/challenges/CH1_RemoveEvenFromArray.java          | 2 +-
 .../array/challenges/CH2_MergeTwoSortedArrays.java         | 2 +-
 .../array/challenges/CH3_FindTwoNoAddingUpToN_Sol_1.java   | 2 +-
 .../array/challenges/CH3_FindTwoNoAddingUpToN_Sol_2.java   | 2 +-
 .../CH4_ArrayOFProductsOfAllElementsExceptItself.java      | 4 ++--
 .../array/challenges/CH5_FindMinimumValueInArray.java      | 4 ++--
 .../CH6_FindFirstNonRepeatingIntegerInArray.java           | 4 ++--
 .../CH7_FindSecondMaximumValueInArray_Sol_1.java           | 4 ++--
 .../CH7_FindSecondMaximumValueInArray_Sol_2.java           | 4 ++--
 .../challenges/CH8_RightRotateTheArrayByOneIndex.java      | 2 +-
 .../CH9_ReArrangePositiveAndNegativeValues_SOL_1.java      | 4 ++--
 .../CH9_ReArrangePositiveAndNegativeValues_SOL_2.java      | 4 ++--
 .../array/sorting/CyclicSortEasy.java                      | 2 +-
 .../array/sorting/QuicksortAlgorithm.java                  | 2 +-
 .../hash_table/PairWithTargetSum.java                      | 2 +-
 .../hash_table}/_hash_tables.md                            | 0
 .../stacks_and_queue/_stacks_and_queues.md                 | 0
 .../tuple/Interval.java                                    | 2 +-
 .../tuple/Tuple.java                                       | 2 +-
 .../tuple/_tuples.md                                       | 0
 .../utils/DataStructuresUtils.java                         | 2 +-
 58 files changed, 90 insertions(+), 94 deletions(-)
 rename app/src/main/java/AceTheJavaCodingInterview/{module1_big_o_notation => big_o_notation}/BigONestedLoopWithAddition.java (93%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module1_big_o_notation => big_o_notation}/BigONestedLoopWithMultiplication.java (95%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module1_big_o_notation => big_o_notation}/BigONestedLoopWithSubtraction.java (86%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module1_big_o_notation => big_o_notation}/_big_o_notation_formulae.md (100%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module1_big_o_notation => big_o_notation}/problem_sets/ProblemSet1.java (95%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module1_big_o_notation => big_o_notation}/problem_sets/ProblemSet2.java (98%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/ClassTemplate.java (83%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/FindMaximumInSlidingWindow.java (95%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/FindTheSmallestCommonNumber.java (92%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/MaximumSumSubarrayOfSizeK.java (97%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/MergeAnArrayWithOverlappingIntervals.java (96%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/OneDimensionalArrays.java (94%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/PairWithTargetSum.java (98%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/Permutations.java (95%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/SmallestSubarrayWithAGreaterSum.java (98%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/SquaringASortedArray.java (96%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/SubArraysWithProductLessThanTarget.java (92%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/Subset.java (97%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/SubsetsWithDuplicates.java (98%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/TripletSumCloseToTarget.java (95%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/TripletSumToZero.java (94%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/TripletsWithSmallerSum_ReturnCount.java (95%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/TripletsWithSmallerSum_ReturnList.java (96%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/TwoDimensionalArrays.java (91%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/_arrays.md (100%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/binary_search/BinarySearchOnSortedArray_Iterative.java (95%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/binary_search/BinarySearchOnSortedArray_Recursive.java (94%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/binary_search/BitonicArrayMaximum.java (97%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/binary_search/FindLowOrHighIndexOfAnElementInSortedArray.java (95%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/binary_search/MoveAllZerosToTheBeginningOfTheArray.java (93%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/binary_search/OrderAgnosticBinarySearch.java (98%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/binary_search/SearchRotatedArray_Iteratively.java (93%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/binary_search/SearchRotatedArray_Recursive.java (93%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/binary_search/StockBuySellToMaximizeProfit.java (93%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_1.java (92%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_2.java (95%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/challenges/CH11_FindTheSumOfMaximumSumSubarray.java (93%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/challenges/CH1_RemoveEvenFromArray.java (95%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/challenges/CH2_MergeTwoSortedArrays.java (96%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_1.java (94%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_2.java (97%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/challenges/CH4_ArrayOFProductsOfAllElementsExceptItself.java (92%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/challenges/CH5_FindMinimumValueInArray.java (88%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/challenges/CH6_FindFirstNonRepeatingIntegerInArray.java (90%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/challenges/CH7_FindSecondMaximumValueInArray_Sol_1.java (92%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/challenges/CH7_FindSecondMaximumValueInArray_Sol_2.java (89%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/challenges/CH8_RightRotateTheArrayByOneIndex.java (93%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_1.java (86%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_2.java (85%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/sorting/CyclicSortEasy.java (97%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/array/sorting/QuicksortAlgorithm.java (97%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/hash_table/PairWithTargetSum.java (97%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures/hash_tables => data_structures/hash_table}/_hash_tables.md (100%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/stacks_and_queue/_stacks_and_queues.md (100%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/tuple/Interval.java (86%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/tuple/Tuple.java (85%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/tuple/_tuples.md (100%)
 rename app/src/main/java/AceTheJavaCodingInterview/{module2_data_structures => data_structures}/utils/DataStructuresUtils.java (94%)

diff --git a/app/src/main/java/AceTheJavaCodingInterview/module1_big_o_notation/BigONestedLoopWithAddition.java b/app/src/main/java/AceTheJavaCodingInterview/big_o_notation/BigONestedLoopWithAddition.java
similarity index 93%
rename from app/src/main/java/AceTheJavaCodingInterview/module1_big_o_notation/BigONestedLoopWithAddition.java
rename to app/src/main/java/AceTheJavaCodingInterview/big_o_notation/BigONestedLoopWithAddition.java
index 0b91cf2..e17e9f7 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module1_big_o_notation/BigONestedLoopWithAddition.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/big_o_notation/BigONestedLoopWithAddition.java
@@ -1,12 +1,11 @@
 /**
- * Big (O) of Nested Loop With Addition
- * Compute the Big O complexity of the code snippet given below.
+ * Big (O) of Nested Loop With Addition Compute the Big O complexity of the code snippet given
+ * below.
  *
  * @authr David Kariuki
  * @since 10/8/2022
  */
-
-package AceTheJavaCodingInterview.module1_big_o_notation;
+package AceTheJavaCodingInterview.big_o_notation;
 
 public class BigONestedLoopWithAddition {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module1_big_o_notation/BigONestedLoopWithMultiplication.java b/app/src/main/java/AceTheJavaCodingInterview/big_o_notation/BigONestedLoopWithMultiplication.java
similarity index 95%
rename from app/src/main/java/AceTheJavaCodingInterview/module1_big_o_notation/BigONestedLoopWithMultiplication.java
rename to app/src/main/java/AceTheJavaCodingInterview/big_o_notation/BigONestedLoopWithMultiplication.java
index 3e09f22..a350494 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module1_big_o_notation/BigONestedLoopWithMultiplication.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/big_o_notation/BigONestedLoopWithMultiplication.java
@@ -1,12 +1,11 @@
 /**
- * Big (O) of Nested Loop With Multiplication
- * Compute the Big O complexity of the code snippet given below.
+ * Big (O) of Nested Loop With Multiplication Compute the Big O complexity of the code snippet given
+ * below.
  *
  * @authr David Kariuki
  * @since 12/8/2022
  */
-
-package AceTheJavaCodingInterview.module1_big_o_notation;
+package AceTheJavaCodingInterview.big_o_notation;
 
 @SuppressWarnings("ALL")
 public class BigONestedLoopWithMultiplication {
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module1_big_o_notation/BigONestedLoopWithSubtraction.java b/app/src/main/java/AceTheJavaCodingInterview/big_o_notation/BigONestedLoopWithSubtraction.java
similarity index 86%
rename from app/src/main/java/AceTheJavaCodingInterview/module1_big_o_notation/BigONestedLoopWithSubtraction.java
rename to app/src/main/java/AceTheJavaCodingInterview/big_o_notation/BigONestedLoopWithSubtraction.java
index 9eeedcf..8f6ea39 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module1_big_o_notation/BigONestedLoopWithSubtraction.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/big_o_notation/BigONestedLoopWithSubtraction.java
@@ -1,12 +1,11 @@
 /**
- * Big (O) of Nested Loop With Subtraction
- * Compute the Big O complexity of the code snippet given below.
+ * Big (O) of Nested Loop With Subtraction Compute the Big O complexity of the code snippet given
+ * below.
  *
  * @authr David Kariuki
  * @since 11/8/2022
  */
-
-package AceTheJavaCodingInterview.module1_big_o_notation;
+package AceTheJavaCodingInterview.big_o_notation;
 
 public class BigONestedLoopWithSubtraction {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module1_big_o_notation/_big_o_notation_formulae.md b/app/src/main/java/AceTheJavaCodingInterview/big_o_notation/_big_o_notation_formulae.md
similarity index 100%
rename from app/src/main/java/AceTheJavaCodingInterview/module1_big_o_notation/_big_o_notation_formulae.md
rename to app/src/main/java/AceTheJavaCodingInterview/big_o_notation/_big_o_notation_formulae.md
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module1_big_o_notation/problem_sets/ProblemSet1.java b/app/src/main/java/AceTheJavaCodingInterview/big_o_notation/problem_sets/ProblemSet1.java
similarity index 95%
rename from app/src/main/java/AceTheJavaCodingInterview/module1_big_o_notation/problem_sets/ProblemSet1.java
rename to app/src/main/java/AceTheJavaCodingInterview/big_o_notation/problem_sets/ProblemSet1.java
index 929c5eb..184cdb6 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module1_big_o_notation/problem_sets/ProblemSet1.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/big_o_notation/problem_sets/ProblemSet1.java
@@ -1,10 +1,10 @@
 /**
  * Problem set 1
+ *
  * @author David Kariuki
  * @since 14/8/2022
  */
-
-package AceTheJavaCodingInterview.module1_big_o_notation.problem_sets;
+package AceTheJavaCodingInterview.big_o_notation.problem_sets;
 
 @SuppressWarnings("unused")
 public class ProblemSet1 {
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module1_big_o_notation/problem_sets/ProblemSet2.java b/app/src/main/java/AceTheJavaCodingInterview/big_o_notation/problem_sets/ProblemSet2.java
similarity index 98%
rename from app/src/main/java/AceTheJavaCodingInterview/module1_big_o_notation/problem_sets/ProblemSet2.java
rename to app/src/main/java/AceTheJavaCodingInterview/big_o_notation/problem_sets/ProblemSet2.java
index 6e0cb8b..e7c9a4f 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module1_big_o_notation/problem_sets/ProblemSet2.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/big_o_notation/problem_sets/ProblemSet2.java
@@ -1,11 +1,10 @@
 /**
  * Problem set 2
+ *
  * @author David Kariuki
  * @since 14/8/2022
  */
-
-package AceTheJavaCodingInterview.module1_big_o_notation.problem_sets;
-
+package AceTheJavaCodingInterview.big_o_notation.problem_sets;
 
 /**
  * <p>
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/ClassTemplate.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/ClassTemplate.java
similarity index 83%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/ClassTemplate.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/ClassTemplate.java
index 7f6ff8d..7b9ec55 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/ClassTemplate.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/ClassTemplate.java
@@ -11,9 +11,9 @@
  * @note Time Complexity -
  * @note Space Complexity -
  * @author David Kariuki
- * @since /8/2022
+ * @since /9/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures;
+package AceTheJavaCodingInterview.data_structures;
 
 public class ClassTemplate {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/FindMaximumInSlidingWindow.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/FindMaximumInSlidingWindow.java
similarity index 95%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/FindMaximumInSlidingWindow.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/FindMaximumInSlidingWindow.java
index 28f850f..c5b9e6c 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/FindMaximumInSlidingWindow.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/FindMaximumInSlidingWindow.java
@@ -11,9 +11,9 @@
  * @author David Kariuki
  * @since 17/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array;
+package AceTheJavaCodingInterview.data_structures.array;
 
-import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
+import AceTheJavaCodingInterview.data_structures.utils.DataStructuresUtils;
 
 import java.util.ArrayDeque;
 import java.util.Deque;
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/FindTheSmallestCommonNumber.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/FindTheSmallestCommonNumber.java
similarity index 92%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/FindTheSmallestCommonNumber.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/FindTheSmallestCommonNumber.java
index dccee74..5eef48b 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/FindTheSmallestCommonNumber.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/FindTheSmallestCommonNumber.java
@@ -8,9 +8,9 @@
  * @author David Kariuki
  * @since 18/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array;
+package AceTheJavaCodingInterview.data_structures.array;
 
-import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
+import AceTheJavaCodingInterview.data_structures.utils.DataStructuresUtils;
 
 public class FindTheSmallestCommonNumber {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/MaximumSumSubarrayOfSizeK.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/MaximumSumSubarrayOfSizeK.java
similarity index 97%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/MaximumSumSubarrayOfSizeK.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/MaximumSumSubarrayOfSizeK.java
index 91f7502..a1afc8e 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/MaximumSumSubarrayOfSizeK.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/MaximumSumSubarrayOfSizeK.java
@@ -22,7 +22,7 @@
  * @author David Kariuki
  * @since 23/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array;
+package AceTheJavaCodingInterview.data_structures.array;
 
 public class MaximumSumSubarrayOfSizeK {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/MergeAnArrayWithOverlappingIntervals.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/MergeAnArrayWithOverlappingIntervals.java
similarity index 96%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/MergeAnArrayWithOverlappingIntervals.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/MergeAnArrayWithOverlappingIntervals.java
index 2eae12c..813d0e6 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/MergeAnArrayWithOverlappingIntervals.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/MergeAnArrayWithOverlappingIntervals.java
@@ -17,9 +17,9 @@
  * @author David Kariuki
  * @since 22/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array;
+package AceTheJavaCodingInterview.data_structures.array;
 
-import AceTheJavaCodingInterview.module2_data_structures.tuple.Interval;
+import AceTheJavaCodingInterview.data_structures.tuple.Interval;
 
 import java.util.ArrayList;
 import java.util.Arrays;
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/OneDimensionalArrays.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/OneDimensionalArrays.java
similarity index 94%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/OneDimensionalArrays.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/OneDimensionalArrays.java
index 1c7daf0..dd6a623 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/OneDimensionalArrays.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/OneDimensionalArrays.java
@@ -7,7 +7,7 @@
  * @author David Kariuki
  * @since 14/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array;
+package AceTheJavaCodingInterview.data_structures.array;
 
 @SuppressWarnings({"ForLoopReplaceableByForEach", "SameParameterValue"})
 public class OneDimensionalArrays {
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/PairWithTargetSum.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/PairWithTargetSum.java
similarity index 98%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/PairWithTargetSum.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/PairWithTargetSum.java
index da8de83..d534a8f 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/PairWithTargetSum.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/PairWithTargetSum.java
@@ -36,7 +36,7 @@
  * @author David Kariuki
  * @since 24/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array;
+package AceTheJavaCodingInterview.data_structures.array;
 
 public class PairWithTargetSum {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/Permutations.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/Permutations.java
similarity index 95%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/Permutations.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/Permutations.java
index c885c7c..12a42cc 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/Permutations.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/Permutations.java
@@ -39,12 +39,12 @@
  *     and the queue to store the intermediate permutations. If you see closely, at any time, we
  *     don’t have more than N! permutations between the result list and the queue. Therefore, the
  *     overall space complexity to store N! permutations each containing N elements will be O(N*N!).
- * @see AceTheJavaCodingInterview.module2_data_structures.array.Subset
- * @see AceTheJavaCodingInterview.module2_data_structures.array.SubsetsWithDuplicates
+ * @see AceTheJavaCodingInterview.data_structures.array.Subset
+ * @see AceTheJavaCodingInterview.data_structures.array.SubsetsWithDuplicates
  * @author David Kariuki
  * @since 24/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array;
+package AceTheJavaCodingInterview.data_structures.array;
 
 import java.util.ArrayList;
 import java.util.LinkedList;
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SmallestSubarrayWithAGreaterSum.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/SmallestSubarrayWithAGreaterSum.java
similarity index 98%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SmallestSubarrayWithAGreaterSum.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/SmallestSubarrayWithAGreaterSum.java
index 64582c6..63ff2c0 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SmallestSubarrayWithAGreaterSum.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/SmallestSubarrayWithAGreaterSum.java
@@ -31,7 +31,7 @@
  * @author David Kariuki
  * @since 23/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array;
+package AceTheJavaCodingInterview.data_structures.array;
 
 public class SmallestSubarrayWithAGreaterSum {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SquaringASortedArray.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/SquaringASortedArray.java
similarity index 96%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SquaringASortedArray.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/SquaringASortedArray.java
index 20d927e..a39ce3f 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SquaringASortedArray.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/SquaringASortedArray.java
@@ -18,7 +18,7 @@
  * @author David Kariuki
  * @since 23/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array;
+package AceTheJavaCodingInterview.data_structures.array;
 
 public class SquaringASortedArray {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SubArraysWithProductLessThanTarget.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/SubArraysWithProductLessThanTarget.java
similarity index 92%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SubArraysWithProductLessThanTarget.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/SubArraysWithProductLessThanTarget.java
index 0f8a141..2033213 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SubArraysWithProductLessThanTarget.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/SubArraysWithProductLessThanTarget.java
@@ -28,10 +28,10 @@
  *     O(N) space which is used for the temp list.
  * @author David Kariuki
  * @since 26/8/2022
- * @see AceTheJavaCodingInterview.module2_data_structures.array.TripletsWithSmallerSum_ReturnCount
- * @see AceTheJavaCodingInterview.module2_data_structures.array.TripletsWithSmallerSum_ReturnList
+ * @see AceTheJavaCodingInterview.data_structures.array.TripletsWithSmallerSum_ReturnCount
+ * @see AceTheJavaCodingInterview.data_structures.array.TripletsWithSmallerSum_ReturnList
  */
-package AceTheJavaCodingInterview.module2_data_structures.array;
+package AceTheJavaCodingInterview.data_structures.array;
 
 import java.util.ArrayList;
 import java.util.LinkedList;
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/Subset.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/Subset.java
similarity index 97%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/Subset.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/Subset.java
index 44ba879..f4b7d6d 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/Subset.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/Subset.java
@@ -28,7 +28,7 @@
  * @author David Kariuki
  * @since 23/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array;
+package AceTheJavaCodingInterview.data_structures.array;
 
 import java.util.ArrayList;
 import java.util.List;
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SubsetsWithDuplicates.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/SubsetsWithDuplicates.java
similarity index 98%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SubsetsWithDuplicates.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/SubsetsWithDuplicates.java
index f127686..2eee725 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/SubsetsWithDuplicates.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/SubsetsWithDuplicates.java
@@ -42,7 +42,7 @@
  * @author David Kariuki
  * @since 24/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array;
+package AceTheJavaCodingInterview.data_structures.array;
 
 import java.util.ArrayList;
 import java.util.Arrays;
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TripletSumCloseToTarget.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TripletSumCloseToTarget.java
similarity index 95%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TripletSumCloseToTarget.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TripletSumCloseToTarget.java
index dfb2d49..d513f12 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TripletSumCloseToTarget.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TripletSumCloseToTarget.java
@@ -19,9 +19,9 @@
  *     for sorting.
  * @author David Kariuki
  * @since 25/8/2022
- * @see AceTheJavaCodingInterview.module2_data_structures.array.TripletSumToZero
+ * @see AceTheJavaCodingInterview.data_structures.array.TripletSumToZero
  */
-package AceTheJavaCodingInterview.module2_data_structures.array;
+package AceTheJavaCodingInterview.data_structures.array;
 
 import java.util.Arrays;
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TripletSumToZero.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TripletSumToZero.java
similarity index 94%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TripletSumToZero.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TripletSumToZero.java
index da9b123..cbc4286 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TripletSumToZero.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TripletSumToZero.java
@@ -33,12 +33,12 @@
  *     to O(N^2).
  * @note Space complexity - Ignoring the space required for the output array, the space complexity
  *     of the above algorithm will be O(N) which is required for sorting.
- * @see AceTheJavaCodingInterview.module2_data_structures.array.PairWithTargetSum
- * @see AceTheJavaCodingInterview.module2_data_structures.hash_table.PairWithTargetSum
+ * @see AceTheJavaCodingInterview.data_structures.array.PairWithTargetSum
+ * @see AceTheJavaCodingInterview.data_structures.hash_table.PairWithTargetSum
  * @author David Kariuki
  * @since 25/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array;
+package AceTheJavaCodingInterview.data_structures.array;
 
 import java.util.ArrayList;
 import java.util.Arrays;
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TripletsWithSmallerSum_ReturnCount.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TripletsWithSmallerSum_ReturnCount.java
similarity index 95%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TripletsWithSmallerSum_ReturnCount.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TripletsWithSmallerSum_ReturnCount.java
index 1f13471..0589b52 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TripletsWithSmallerSum_ReturnCount.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TripletsWithSmallerSum_ReturnCount.java
@@ -17,9 +17,9 @@
  *     of the above algorithm will be O(N) which is required for sorting.
  * @author David Kariuki
  * @since 26/8/2022
- * @see AceTheJavaCodingInterview.module2_data_structures.array.TripletSumToZero
+ * @see AceTheJavaCodingInterview.data_structures.array.TripletSumToZero
  */
-package AceTheJavaCodingInterview.module2_data_structures.array;
+package AceTheJavaCodingInterview.data_structures.array;
 
 import java.util.ArrayList;
 import java.util.Arrays;
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TripletsWithSmallerSum_ReturnList.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TripletsWithSmallerSum_ReturnList.java
similarity index 96%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TripletsWithSmallerSum_ReturnList.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TripletsWithSmallerSum_ReturnList.java
index 8165357..fef7a5e 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TripletsWithSmallerSum_ReturnList.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TripletsWithSmallerSum_ReturnList.java
@@ -31,9 +31,9 @@
  *     required for sorting if we are not using an in-place sorting algorithm.
  * @author David Kariuki
  * @since 26/8/2022
- * @see AceTheJavaCodingInterview.module2_data_structures.array.TripletSumToZero
+ * @see AceTheJavaCodingInterview.data_structures.array.TripletSumToZero
  */
-package AceTheJavaCodingInterview.module2_data_structures.array;
+package AceTheJavaCodingInterview.data_structures.array;
 
 import java.util.Arrays;
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TwoDimensionalArrays.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TwoDimensionalArrays.java
similarity index 91%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TwoDimensionalArrays.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TwoDimensionalArrays.java
index 68c1b4c..e9444a1 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/TwoDimensionalArrays.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TwoDimensionalArrays.java
@@ -7,7 +7,7 @@
  * @author David Kariuki
  * @since 14/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array;
+package AceTheJavaCodingInterview.data_structures.array;
 
 @SuppressWarnings("SameParameterValue")
 public class TwoDimensionalArrays {
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/_arrays.md b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/_arrays.md
similarity index 100%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/_arrays.md
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/_arrays.md
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/BinarySearchOnSortedArray_Iterative.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/BinarySearchOnSortedArray_Iterative.java
similarity index 95%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/BinarySearchOnSortedArray_Iterative.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/BinarySearchOnSortedArray_Iterative.java
index f8f2279..264cd00 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/BinarySearchOnSortedArray_Iterative.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/BinarySearchOnSortedArray_Iterative.java
@@ -9,7 +9,7 @@
  * @author David Kariuki
  * @since 17/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array.binary_search;
+package AceTheJavaCodingInterview.data_structures.array.binary_search;
 
 public class BinarySearchOnSortedArray_Iterative {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/BinarySearchOnSortedArray_Recursive.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/BinarySearchOnSortedArray_Recursive.java
similarity index 94%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/BinarySearchOnSortedArray_Recursive.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/BinarySearchOnSortedArray_Recursive.java
index f09e1cb..000a767 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/BinarySearchOnSortedArray_Recursive.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/BinarySearchOnSortedArray_Recursive.java
@@ -9,9 +9,9 @@
  * @author David Kariuki
  * @since 17/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array.binary_search;
+package AceTheJavaCodingInterview.data_structures.array.binary_search;
 
-import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
+import AceTheJavaCodingInterview.data_structures.utils.DataStructuresUtils;
 
 public class BinarySearchOnSortedArray_Recursive {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/BitonicArrayMaximum.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/BitonicArrayMaximum.java
similarity index 97%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/BitonicArrayMaximum.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/BitonicArrayMaximum.java
index 57046c4..7bc1a40 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/BitonicArrayMaximum.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/BitonicArrayMaximum.java
@@ -33,7 +33,7 @@
  * @author David Kariuki
  * @since 24/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array.binary_search;
+package AceTheJavaCodingInterview.data_structures.array.binary_search;
 
 public class BitonicArrayMaximum {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/FindLowOrHighIndexOfAnElementInSortedArray.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/FindLowOrHighIndexOfAnElementInSortedArray.java
similarity index 95%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/FindLowOrHighIndexOfAnElementInSortedArray.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/FindLowOrHighIndexOfAnElementInSortedArray.java
index ff176a8..265aef9 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/FindLowOrHighIndexOfAnElementInSortedArray.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/FindLowOrHighIndexOfAnElementInSortedArray.java
@@ -17,9 +17,9 @@
  * @author David Kariuki
  * @since /8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array.binary_search;
+package AceTheJavaCodingInterview.data_structures.array.binary_search;
 
-import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
+import AceTheJavaCodingInterview.data_structures.utils.DataStructuresUtils;
 
 @SuppressWarnings("ALL")
 public class FindLowOrHighIndexOfAnElementInSortedArray {
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/MoveAllZerosToTheBeginningOfTheArray.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/MoveAllZerosToTheBeginningOfTheArray.java
similarity index 93%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/MoveAllZerosToTheBeginningOfTheArray.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/MoveAllZerosToTheBeginningOfTheArray.java
index e6d9a01..42982bf 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/MoveAllZerosToTheBeginningOfTheArray.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/MoveAllZerosToTheBeginningOfTheArray.java
@@ -7,9 +7,9 @@
  * @author David Kariuki
  * @since 18/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array.binary_search;
+package AceTheJavaCodingInterview.data_structures.array.binary_search;
 
-import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
+import AceTheJavaCodingInterview.data_structures.utils.DataStructuresUtils;
 
 public class MoveAllZerosToTheBeginningOfTheArray {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/OrderAgnosticBinarySearch.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/OrderAgnosticBinarySearch.java
similarity index 98%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/OrderAgnosticBinarySearch.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/OrderAgnosticBinarySearch.java
index 6a42012..c58e9fa 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/OrderAgnosticBinarySearch.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/OrderAgnosticBinarySearch.java
@@ -47,7 +47,7 @@
  * @author David Kariuki
  * @since 24/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array.binary_search;
+package AceTheJavaCodingInterview.data_structures.array.binary_search;
 
 public class OrderAgnosticBinarySearch {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/SearchRotatedArray_Iteratively.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/SearchRotatedArray_Iteratively.java
similarity index 93%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/SearchRotatedArray_Iteratively.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/SearchRotatedArray_Iteratively.java
index 7e22a53..6e84dbc 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/SearchRotatedArray_Iteratively.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/SearchRotatedArray_Iteratively.java
@@ -10,9 +10,9 @@
  * @author David Kariuki
  * @since 18/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array.binary_search;
+package AceTheJavaCodingInterview.data_structures.array.binary_search;
 
-import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
+import AceTheJavaCodingInterview.data_structures.utils.DataStructuresUtils;
 
 public class SearchRotatedArray_Iteratively {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/SearchRotatedArray_Recursive.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/SearchRotatedArray_Recursive.java
similarity index 93%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/SearchRotatedArray_Recursive.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/SearchRotatedArray_Recursive.java
index 06ebcc2..a710070 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/SearchRotatedArray_Recursive.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/SearchRotatedArray_Recursive.java
@@ -10,9 +10,9 @@
  * @author David Kariuki
  * @since 18/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array.binary_search;
+package AceTheJavaCodingInterview.data_structures.array.binary_search;
 
-import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
+import AceTheJavaCodingInterview.data_structures.utils.DataStructuresUtils;
 
 public class SearchRotatedArray_Recursive {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/StockBuySellToMaximizeProfit.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/StockBuySellToMaximizeProfit.java
similarity index 93%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/StockBuySellToMaximizeProfit.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/StockBuySellToMaximizeProfit.java
index 32b16ce..0877a2a 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/binary_search/StockBuySellToMaximizeProfit.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/binary_search/StockBuySellToMaximizeProfit.java
@@ -15,10 +15,10 @@
  * @author David Kariuki
  * @since 18/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array.binary_search;
+package AceTheJavaCodingInterview.data_structures.array.binary_search;
 
-import AceTheJavaCodingInterview.module2_data_structures.tuple.Tuple;
-import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
+import AceTheJavaCodingInterview.data_structures.tuple.Tuple;
+import AceTheJavaCodingInterview.data_structures.utils.DataStructuresUtils;
 
 @SuppressWarnings("UnusedAssignment")
 public class StockBuySellToMaximizeProfit {
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_1.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_1.java
similarity index 92%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_1.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_1.java
index a2b6fb2..94a2cdf 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_1.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_1.java
@@ -9,9 +9,9 @@
  * @author David Kariuki
  * @since 16/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
+package AceTheJavaCodingInterview.data_structures.array.challenges;
 
-import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
+import AceTheJavaCodingInterview.data_structures.utils.DataStructuresUtils;
 
 public class CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_1 {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_2.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_2.java
similarity index 95%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_2.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_2.java
index 6ba70f3..2625f07 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_2.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_2.java
@@ -9,7 +9,7 @@
  * @author David Kariuki
  * @since 16/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
+package AceTheJavaCodingInterview.data_structures.array.challenges;
 
 public class CH10_RearrangeSortedArrayInMaxOrMinForm_SOL_2 {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH11_FindTheSumOfMaximumSumSubarray.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH11_FindTheSumOfMaximumSumSubarray.java
similarity index 93%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH11_FindTheSumOfMaximumSumSubarray.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH11_FindTheSumOfMaximumSumSubarray.java
index f12d883..f2f2b0b 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH11_FindTheSumOfMaximumSumSubarray.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH11_FindTheSumOfMaximumSumSubarray.java
@@ -16,9 +16,9 @@
  * @author David Kariuki
  * @since 17/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
+package AceTheJavaCodingInterview.data_structures.array.challenges;
 
-import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
+import AceTheJavaCodingInterview.data_structures.utils.DataStructuresUtils;
 
 public class CH11_FindTheSumOfMaximumSumSubarray {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH1_RemoveEvenFromArray.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH1_RemoveEvenFromArray.java
similarity index 95%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH1_RemoveEvenFromArray.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH1_RemoveEvenFromArray.java
index 7718fe0..a0ed4aa 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH1_RemoveEvenFromArray.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH1_RemoveEvenFromArray.java
@@ -8,7 +8,7 @@
  * @author David Kariuki
  * @since 14/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
+package AceTheJavaCodingInterview.data_structures.array.challenges;
 
 public class CH1_RemoveEvenFromArray {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH2_MergeTwoSortedArrays.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH2_MergeTwoSortedArrays.java
similarity index 96%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH2_MergeTwoSortedArrays.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH2_MergeTwoSortedArrays.java
index 878f059..4f6dcf4 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH2_MergeTwoSortedArrays.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH2_MergeTwoSortedArrays.java
@@ -8,7 +8,7 @@
  * @author David Kariuki
  * @since 14/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
+package AceTheJavaCodingInterview.data_structures.array.challenges;
 
 public class CH2_MergeTwoSortedArrays {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_1.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_1.java
similarity index 94%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_1.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_1.java
index b361a27..ccad680 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_1.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_1.java
@@ -8,7 +8,7 @@
  * @author David Kariuki
  * @since 14/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
+package AceTheJavaCodingInterview.data_structures.array.challenges;
 
 public class CH3_FindTwoNoAddingUpToN_Sol_1 {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_2.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_2.java
similarity index 97%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_2.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_2.java
index 5668396..a05024d 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_2.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH3_FindTwoNoAddingUpToN_Sol_2.java
@@ -8,7 +8,7 @@
  * @author David Kariuki
  * @since 14/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
+package AceTheJavaCodingInterview.data_structures.array.challenges;
 
 public class CH3_FindTwoNoAddingUpToN_Sol_2 {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH4_ArrayOFProductsOfAllElementsExceptItself.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH4_ArrayOFProductsOfAllElementsExceptItself.java
similarity index 92%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH4_ArrayOFProductsOfAllElementsExceptItself.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH4_ArrayOFProductsOfAllElementsExceptItself.java
index 16284e9..50d0122 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH4_ArrayOFProductsOfAllElementsExceptItself.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH4_ArrayOFProductsOfAllElementsExceptItself.java
@@ -8,9 +8,9 @@
  * @author David Kariuki
  * @since 16/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
+package AceTheJavaCodingInterview.data_structures.array.challenges;
 
-import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
+import AceTheJavaCodingInterview.data_structures.utils.DataStructuresUtils;
 
 public class CH4_ArrayOFProductsOfAllElementsExceptItself {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH5_FindMinimumValueInArray.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH5_FindMinimumValueInArray.java
similarity index 88%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH5_FindMinimumValueInArray.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH5_FindMinimumValueInArray.java
index 13af1ff..2545728 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH5_FindMinimumValueInArray.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH5_FindMinimumValueInArray.java
@@ -7,9 +7,9 @@
  * @author David Kariuki
  * @since 16/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
+package AceTheJavaCodingInterview.data_structures.array.challenges;
 
-import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
+import AceTheJavaCodingInterview.data_structures.utils.DataStructuresUtils;
 
 public class CH5_FindMinimumValueInArray {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH6_FindFirstNonRepeatingIntegerInArray.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH6_FindFirstNonRepeatingIntegerInArray.java
similarity index 90%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH6_FindFirstNonRepeatingIntegerInArray.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH6_FindFirstNonRepeatingIntegerInArray.java
index 7f5736b..c18034b 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH6_FindFirstNonRepeatingIntegerInArray.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH6_FindFirstNonRepeatingIntegerInArray.java
@@ -8,9 +8,9 @@
  * @author David Kariuki
  * @since 16/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
+package AceTheJavaCodingInterview.data_structures.array.challenges;
 
-import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
+import AceTheJavaCodingInterview.data_structures.utils.DataStructuresUtils;
 
 public class CH6_FindFirstNonRepeatingIntegerInArray {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH7_FindSecondMaximumValueInArray_Sol_1.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH7_FindSecondMaximumValueInArray_Sol_1.java
similarity index 92%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH7_FindSecondMaximumValueInArray_Sol_1.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH7_FindSecondMaximumValueInArray_Sol_1.java
index bc347e9..0406c0d 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH7_FindSecondMaximumValueInArray_Sol_1.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH7_FindSecondMaximumValueInArray_Sol_1.java
@@ -7,9 +7,9 @@
  * @author David Kariuki
  * @since 16/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
+package AceTheJavaCodingInterview.data_structures.array.challenges;
 
-import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
+import AceTheJavaCodingInterview.data_structures.utils.DataStructuresUtils;
 
 public class CH7_FindSecondMaximumValueInArray_Sol_1 {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH7_FindSecondMaximumValueInArray_Sol_2.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH7_FindSecondMaximumValueInArray_Sol_2.java
similarity index 89%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH7_FindSecondMaximumValueInArray_Sol_2.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH7_FindSecondMaximumValueInArray_Sol_2.java
index 65a3f5a..d36b952 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH7_FindSecondMaximumValueInArray_Sol_2.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH7_FindSecondMaximumValueInArray_Sol_2.java
@@ -7,9 +7,9 @@
  * @author David Kariuki
  * @since 16/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
+package AceTheJavaCodingInterview.data_structures.array.challenges;
 
-import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
+import AceTheJavaCodingInterview.data_structures.utils.DataStructuresUtils;
 
 public class CH7_FindSecondMaximumValueInArray_Sol_2 {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH8_RightRotateTheArrayByOneIndex.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH8_RightRotateTheArrayByOneIndex.java
similarity index 93%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH8_RightRotateTheArrayByOneIndex.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH8_RightRotateTheArrayByOneIndex.java
index 4560111..2025126 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH8_RightRotateTheArrayByOneIndex.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH8_RightRotateTheArrayByOneIndex.java
@@ -7,7 +7,7 @@
  * @author David Kariuki
  * @since 16/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
+package AceTheJavaCodingInterview.data_structures.array.challenges;
 
 public class CH8_RightRotateTheArrayByOneIndex {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_1.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_1.java
similarity index 86%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_1.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_1.java
index cfe9815..00857fd 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_1.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_1.java
@@ -7,9 +7,9 @@
  * @author David Kariuki
  * @since 16/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
+package AceTheJavaCodingInterview.data_structures.array.challenges;
 
-import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
+import AceTheJavaCodingInterview.data_structures.utils.DataStructuresUtils;
 
 public class CH9_ReArrangePositiveAndNegativeValues_SOL_1 {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_2.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_2.java
similarity index 85%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_2.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_2.java
index 990be87..ecc9929 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_2.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/challenges/CH9_ReArrangePositiveAndNegativeValues_SOL_2.java
@@ -7,9 +7,9 @@
  * @author David Kariuki
  * @since 16/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array.challenges;
+package AceTheJavaCodingInterview.data_structures.array.challenges;
 
-import AceTheJavaCodingInterview.module2_data_structures.utils.DataStructuresUtils;
+import AceTheJavaCodingInterview.data_structures.utils.DataStructuresUtils;
 
 public class CH9_ReArrangePositiveAndNegativeValues_SOL_2 {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/sorting/CyclicSortEasy.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/sorting/CyclicSortEasy.java
similarity index 97%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/sorting/CyclicSortEasy.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/sorting/CyclicSortEasy.java
index b2cf517..04baa3d 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/sorting/CyclicSortEasy.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/sorting/CyclicSortEasy.java
@@ -34,7 +34,7 @@
  * @author David Kariuki
  * @since 23/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array.sorting;
+package AceTheJavaCodingInterview.data_structures.array.sorting;
 
 public class CyclicSortEasy {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/sorting/QuicksortAlgorithm.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/sorting/QuicksortAlgorithm.java
similarity index 97%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/sorting/QuicksortAlgorithm.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/array/sorting/QuicksortAlgorithm.java
index 7cd92e8..ce5ae57 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/array/sorting/QuicksortAlgorithm.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/sorting/QuicksortAlgorithm.java
@@ -18,7 +18,7 @@
  * @author David Kariuki
  * @since 23/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.array.sorting;
+package AceTheJavaCodingInterview.data_structures.array.sorting;
 
 import java.util.Arrays;
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/hash_table/PairWithTargetSum.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/hash_table/PairWithTargetSum.java
similarity index 97%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/hash_table/PairWithTargetSum.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/hash_table/PairWithTargetSum.java
index 855fe5d..3ae68a1 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/hash_table/PairWithTargetSum.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/hash_table/PairWithTargetSum.java
@@ -26,7 +26,7 @@
  * @author David Kariuki
  * @since 24/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.hash_table;
+package AceTheJavaCodingInterview.data_structures.hash_table;
 
 import java.util.HashMap;
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/hash_tables/_hash_tables.md b/app/src/main/java/AceTheJavaCodingInterview/data_structures/hash_table/_hash_tables.md
similarity index 100%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/hash_tables/_hash_tables.md
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/hash_table/_hash_tables.md
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/stacks_and_queue/_stacks_and_queues.md b/app/src/main/java/AceTheJavaCodingInterview/data_structures/stacks_and_queue/_stacks_and_queues.md
similarity index 100%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/stacks_and_queue/_stacks_and_queues.md
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/stacks_and_queue/_stacks_and_queues.md
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/tuple/Interval.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/tuple/Interval.java
similarity index 86%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/tuple/Interval.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/tuple/Interval.java
index 8cbd538..84508b8 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/tuple/Interval.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/tuple/Interval.java
@@ -7,7 +7,7 @@
  * @author David Kariuki
  * @since 22/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.tuple;
+package AceTheJavaCodingInterview.data_structures.tuple;
 
 public class Interval {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/tuple/Tuple.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/tuple/Tuple.java
similarity index 85%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/tuple/Tuple.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/tuple/Tuple.java
index 65c196b..1ce5605 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/tuple/Tuple.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/tuple/Tuple.java
@@ -7,7 +7,7 @@
  * @author David Kariuki
  * @since 18/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.tuple;
+package AceTheJavaCodingInterview.data_structures.tuple;
 
 public class Tuple<X, Y> {
 
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/tuple/_tuples.md b/app/src/main/java/AceTheJavaCodingInterview/data_structures/tuple/_tuples.md
similarity index 100%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/tuple/_tuples.md
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/tuple/_tuples.md
diff --git a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/utils/DataStructuresUtils.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/utils/DataStructuresUtils.java
similarity index 94%
rename from app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/utils/DataStructuresUtils.java
rename to app/src/main/java/AceTheJavaCodingInterview/data_structures/utils/DataStructuresUtils.java
index b65fcac..14ccd1f 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/module2_data_structures/utils/DataStructuresUtils.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/utils/DataStructuresUtils.java
@@ -4,7 +4,7 @@
  * @author David Kariuki
  * @since 16/8/2022
  */
-package AceTheJavaCodingInterview.module2_data_structures.utils;
+package AceTheJavaCodingInterview.data_structures.utils;
 
 public class DataStructuresUtils {
 

From dbb80ef20df91521e7e4877936a9bfb8a44f5639 Mon Sep 17 00:00:00 2001
From: dk <workplace.davidkariuki@gmail.com>
Date: Wed, 7 Sep 2022 13:09:21 +0300
Subject: [PATCH 9/9] refactor: refactor

refactor package names

Signed-off-by: dk <workplace.davidkariuki@gmail.com>
---
 .../data_structures/array/Permutations.java        |  6 +++---
 .../array/SubArraysWithProductLessThanTarget.java  |  7 +++----
 .../array/TripletSumCloseToTarget.java             |  3 +--
 .../data_structures/array/TripletSumToZero.java    | 14 +++++++-------
 .../array/TripletsWithSmallerSum_ReturnList.java   |  8 ++++----
 5 files changed, 18 insertions(+), 20 deletions(-)

diff --git a/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/Permutations.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/Permutations.java
index 12a42cc..02a4195 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/Permutations.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/Permutations.java
@@ -9,9 +9,9 @@
  *     <p>{1, 2, 3} {1, 3, 2} {2, 1, 3} {2, 3, 1} {3, 1, 2} {3, 2, 1}
  *     <p>If a set has n distinct elements it will have n! n! permutations.
  * @note Solution This problem follows the Subsets pattern ({@link
- *     AceTheJavaCodingInterview.module2_data_structures.array.Subset}) and, we can follow a similar
- *     Breadth First Search (BFS) approach. However, unlike Subsets, every permutation must contain
- *     all the numbers.
+ *     AceTheJavaCodingInterview.data_structures.array.Subset}) and, we can follow a similar Breadth
+ *     First Search (BFS) approach. However, unlike Subsets, every permutation must contain all the
+ *     numbers.
  *     <p>Let’s take the example-1 mentioned above to generate all the permutations. Following a BFS
  *     approach, we will consider one number at a time:
  *     <p>1. If the given set is empty then we have only an empty permutation set: []
diff --git a/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/SubArraysWithProductLessThanTarget.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/SubArraysWithProductLessThanTarget.java
index 2033213..910173c 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/SubArraysWithProductLessThanTarget.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/SubArraysWithProductLessThanTarget.java
@@ -14,10 +14,9 @@
  * @note Solution - This problem follows the Sliding Window and the Two Pointers pattern and shares
  *     similarities with Triplets with Smaller Sum
  *     <p>({@link
- *     AceTheJavaCodingInterview.module2_data_structures.array.TripletsWithSmallerSum_ReturnCount},
- *     {@link
- *     AceTheJavaCodingInterview.module2_data_structures.array.TripletsWithSmallerSum_ReturnList})
- *     with two differences:
+ *     AceTheJavaCodingInterview.data_structures.array.TripletsWithSmallerSum_ReturnCount}, {@link
+ *     AceTheJavaCodingInterview.data_structures.array.TripletsWithSmallerSum_ReturnList}) with two
+ *     differences:
  *     <p>In this problem, the input array is not sorted. Instead of finding triplets with sum less
  *     than a target, we need to find all sub-array having a product less than the target. The
  *     implementation will be quite similar to Triplets with Smaller Sum.
diff --git a/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TripletSumCloseToTarget.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TripletSumCloseToTarget.java
index d513f12..0f819d7 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TripletSumCloseToTarget.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TripletSumCloseToTarget.java
@@ -8,8 +8,7 @@
  *     of the triplet. If there are more than one such triplet, return the sum of the triplet with
  *     the smallest sum.
  * @note Solution - This problem follows the Two Pointers pattern and is quite similar to Triplet
- *     Sum to Zero({@link
- *     AceTheJavaCodingInterview.module2_data_structures.array.TripletSumToZero}).
+ *     Sum to Zero({@link AceTheJavaCodingInterview.data_structures.array.TripletSumToZero}).
  *     <p>We can follow a similar approach to iterate through the array, taking one number at a
  *     time. At every step, we will save the difference between the triplet and the target number,
  *     so that in the end, we can return the triplet with the closest sum.
diff --git a/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TripletSumToZero.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TripletSumToZero.java
index cbc4286..78f64bf 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TripletSumToZero.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TripletSumToZero.java
@@ -14,19 +14,19 @@
  *     unique triplets whose sum is equal to zero.
  * @solution Solution - This problem follows the Two Pointers pattern and shares similarities with
  *     Pair with Target Sum ({@link
- *     AceTheJavaCodingInterview.module2_data_structures.array.PairWithTargetSum}). A couple of
- *     differences are that the input array is not sorted and instead of a pair we need to find
- *     triplets with a target sum of zero.
+ *     AceTheJavaCodingInterview.data_structures.array.PairWithTargetSum}). A couple of differences
+ *     are that the input array is not sorted and instead of a pair we need to find triplets with a
+ *     target sum of zero.
  *     <p>To follow a similar approach, first, we will sort the array and then iterate through it
  *     taking one number at a time. Let’s say during our iteration we are at number ‘X’, so we need
  *     to find ‘Y’ and ‘Z’ such that X + Y + Z == 0. At this stage, our problem translates into
  *     finding a pair whose sum is equal to -X (as from the above equation Y + Z == -X).
  *     <p>
  *     <p>Another difference from Pair with Target Sum({@link
- *     AceTheJavaCodingInterview.module2_data_structures.array.PairWithTargetSum}) is that we need
- *     to find all the unique triplets. To handle this, we have to skip any duplicate number. Since
- *     we will be sorting the array, so all the duplicate numbers will be next to each other and are
- *     easier to skip.
+ *     AceTheJavaCodingInterview.data_structures.array.PairWithTargetSum}) is that we need to find
+ *     all the unique triplets. To handle this, we have to skip any duplicate number. Since we will
+ *     be sorting the array, so all the duplicate numbers will be next to each other and are easier
+ *     to skip.
  * @note Time complexity - Sorting the array will take O(N * logN). The searchPair() function will
  *     take O(N). As we are calling searchPair() for every number in the input array, this means
  *     that overall searchTriplets() will take O(N * logN + N^2), which is asymptotically equivalent
diff --git a/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TripletsWithSmallerSum_ReturnList.java b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TripletsWithSmallerSum_ReturnList.java
index fef7a5e..8eee3c7 100644
--- a/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TripletsWithSmallerSum_ReturnList.java
+++ b/app/src/main/java/AceTheJavaCodingInterview/data_structures/array/TripletsWithSmallerSum_ReturnList.java
@@ -14,10 +14,10 @@
  *     is less than the target: [-1, 1, 4], [-1, 1, 3], [-1, 1, 2], [-1, 2, 3]
  * @note Solution - This problem follows the Two Pointers pattern and shares similarities with
  *     Triplet Sum to Zero ({@link
- *     AceTheJavaCodingInterview.module2_data_structures.array.TripletSumToZero}). The only
- *     difference is that, in this problem, we need to find the triplets whose sum is less than the
- *     given target. To meet the condition i != j != k we need to make sure that each number is not
- *     used more than once.
+ *     AceTheJavaCodingInterview.data_structures.array.TripletSumToZero}). The only difference is
+ *     that, in this problem, we need to find the triplets whose sum is less than the given target.
+ *     To meet the condition i != j != k we need to make sure that each number is not used more than
+ *     once.
  *     <p>Following a similar approach, first, we can sort the array and then iterate through it,
  *     taking one number at a time. Let’s say during our iteration we are at number ‘X’, so we need
  *     to find ‘Y’ and ‘Z’ such that X + Y + Z < target X+Y+Z<target . At this stage, our problem