Update Balanced Binary Tree - Leetcode 110.py

Author: rai-abhi24

Balanced Binary Tree - Leetcode 110.py

@@ -19,3 +19,6 @@ def height(root):
 
         height(root)
         return balanced[0]
+
+# Time Complexity: O(n)
+# Space Complexity: O(h) { here "h" is the height of the tree }