Added solution for LeetCode 110 - Balanced Binary Tree (C++) #529
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Hi @maintainers, Could you please take a look at this PR when you have a moment? Your review is needed to approve and merge it. Thanks in advance! 🙏 |
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…Problem: Balanced Binary Tree
Check if a binary tree is height-balanced, meaning the heights of left and right subtrees of every node differ by at most 1.
Approach:
Bottom-up recursion to compute subtree heights.
Return -1 if any subtree is unbalanced.
Tree is balanced if final result is not -1.
Complexity:
Time: O(n)
Space: O(h) (recursion stack)
Tested on:
Empty tree, single node tree, balanced trees, and unbalanced trees.