[REFACTOR] clean code: variable naming

Author: Gonzalo Diaz

src/hackerrank/interview_preparation_kit/dictionaries_and_hashmaps/count_triplets_1.py

@@ -4,7 +4,7 @@
 from collections import Counter
 
 
-def count_triplets_brute_force(arr: list[int], r: int) -> int:
+def count_triplets_brute_force(arr: list[int], ratio: int) -> int:
 
     size = len(arr)
     counter = 0
@@ -14,22 +14,22 @@ def count_triplets_brute_force(arr: list[int], r: int) -> int:
             for k in range(j + 1, size):
                 print(arr[i], arr[j], arr[k])
 
-                if r * arr[i] == arr[j] and r * arr[j] == arr[k]:
+                if ratio * arr[i] == arr[j] and ratio * arr[j] == arr[k]:
                     counter += 1
 
     return counter
 
 
-def count_triplets(arr, r):
+def count_triplets(arr: list[int], ratio: int) -> int:
     a_counter = Counter(arr)
     b_counter = Counter()
     triplets = 0
 
     for i in arr:
-        j = i // r
-        k = i * r
+        j = i // ratio
+        k = i * ratio
         a_counter[i] -= 1
-        if b_counter[j] and a_counter[k] and i % r == 0:
+        if b_counter[j] and a_counter[k] and i % ratio == 0:
             triplets += b_counter[j] * a_counter[k]
         b_counter[i] += 1