[REFACTOR] clean code: variable naming

Author: Gonzalo Diaz

src/hackerrank/interview_preparation_kit/sorting/ctci_comparator_sorting.py

@@ -17,9 +17,9 @@ def __repr__(self) -> str:
         # Given code
         return ''
 
-    def comparator(self, b: Player) -> int:
+    def comparator(self, b_player: Player) -> int:
         # Given code
-        return 0 * b.score
+        return 0 * b_player.score
 
 # End Given code
 
@@ -35,14 +35,14 @@ def __init__(self, name: str, score: int):
     def __repr__(self) -> str:
         return f'{self.name} {self.score}'
 
-    def comparator(self: Player, b: Player) -> int:
-        if self.score > b.score:
+    def comparator(self: Player, b_player: Player) -> int:
+        if self.score > b_player.score:
             return -1
-        if self.score < b.score:
+        if self.score < b_player.score:
             return 1
-        if self.name < b.name:
+        if self.name < b_player.name:
             return -1
-        if self.name > b.name:
+        if self.name > b_player.name:
             return 1
 
         return 0