Create 1394. Find Lucky Integer in an Array (#833)

Author: Chayandas07

1394. Find Lucky Integer in an Array

@@ -0,0 +1,27 @@
+class Solution {
+public:
+    int findLucky(vector<int>& arr) {
+        unordered_map<int,int> map1;
+
+        for(auto it : arr)
+        {
+            map1[it]++;
+        }
+
+
+        int count =-1; 
+
+        for(auto x : map1)
+        {
+            if(x.first == x.second)
+            {
+                count = max(count,x.first);
+
+            }
+        }
+
+        return count;
+
+        
+    }
+};