🚀🔥 LeetCode 1382 | Balance a Binary Search Tree (09-02-2026) | Easy Explanation

Описание: In this problem, you are given the root of a Binary Search Tree (BST) that may be unbalanced. Your task is to rearrange the nodes so that the resulting tree becomes height-balanced while still maintaining the properties of a BST.

A balanced BST ensures that the height difference between left and right subtrees remains small, which improves search, insert, and delete operations.

🧠 Main Idea

The key idea is simple:
First, store all nodes of the BST in sorted order using inorder traversal.
Then, rebuild the tree by choosing the middle element as the root to create a balanced structure.

This way, we keep the BST property and also reduce the height of the tree.

⚙️ Approach Explained

1️⃣ Perform Inorder Traversal to get sorted nodes
2️⃣ Use the middle element as root
3️⃣ Recursively build left and right subtrees
4️⃣ Construct a height-balanced BST

This gives an efficient solution with O(n) time complexity.

🎥 Watch Full Explanation

   • 🔥 LeetCode 110 | Balanced Binary Tree (08-...  

📌 Key Concepts Covered

Binary Search Tree (BST)

Inorder Traversal

Recursion

Divide and Conquer

Tree Balancing

💡 Why Solve This Problem?

LeetCode 1382 helps you understand how tree structure affects performance and teaches an important interview pattern: convert → process → rebuild. It strengthens your skills in recursion and tree manipulation.

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