Update maximum-depth-of-binary-tree/dolphinflow86.py

오 넵 이게 낫겠네요! 변수를 쓴다면 더 명시적으로 적어보겠습니다.

Co-authored-by: Hojeong Park <parkhj062@gmail.com>

Author: dolphinflow86

maximum-depth-of-binary-tree/dolphinflow86.py

@@ -12,9 +12,10 @@ def dfs(self, node: Optional[TreeNode], depth: int) -> int:
         if not node:
             return depth
 
-        left = self.dfs(node.left, depth + 1)
-        right = self.dfs(node.right, depth + 1)
-        return max(left, right)
+        return max(
+            self.dfs(node.left, depth + 1),
+            self.dfs(node.right, depth + 1)
+        )
 
     def maxDepth(self, root: Optional[TreeNode]) -> int:
         return self.dfs(root, 0)