Update Divide_Players_Into_Teams_Of_Equal_Skills.py

Python/Divide_Players_Into_Teams_Of_Equal_Skills.py

@@ -1,17 +1,23 @@
+from typing import List
+
 class Solution:
     def dividePlayers(self, skill: List[int]) -> int:
         # Step 1: Sort the skill array
         skill.sort()
 
-        total_skill = skill[0] + skill[-1]  # Required sum for each pair
+        # Step 2: Calculate the required sum for each pair
+        total_skill = skill[0] + skill[-1]  
         chemistry_sum = 0
 
-        # Step 2: Pair players using two pointers
-        for i in range(len(skill) // 2):
-            # Check if the sum of current pair matches the required total_skill
-            if skill[i] + skill[-i - 1] != total_skill:
+        # Step 3: Pair players using two pointers
+        n = len(skill)
+        for i in range(n // 2):
+            # Check if the sum of the current pair matches the required total_skill
+            if skill[i] + skill[n - 1 - i] != total_skill:
                 return -1  # Invalid configuration, return -1
+
             # Calculate the chemistry (product of pair) and add it to the sum
-            chemistry_sum += skill[i] * skill[-i - 1]
+            chemistry_sum += skill[i] * skill[n - 1 - i]
 
-        return chemistry_sum  # Return total chemistry
+        # Step 4: Return total chemistry
+        return chemistry_sum