LeetCode 538 | Convert BST to Greater Tree | Python Solution Explained | AlgoYogi

Welcome to **AlgoYogi**! In this video, we solve **LeetCode problem 538: Convert BST to Greater Tree** step-by-step using Python. This problem is essential for understanding **reverse in-order traversal, recursion, and cumulative sum calculation**, making it a frequently asked coding interview question. 👉 **LeetCode Problem Link:** [Convert BST to Greater Tree - LeetCode 538](https://leetcode.com/problems/convert-bst-to-greater-tree/) ### 🚀 Timestamps: 0:00 Introduction 0:20 Problem Explanation and Constraints 1:00 Approach 5:30 Python Implementation 8:40 Complexity Analysis ### 💡 Why Watch? - Learn how to **convert a BST into a greater tree using reverse in-order traversal**. - Understand **how to maintain a running sum to update node values efficiently**. - Strengthen your problem-solving skills in **tree traversal and recursion**. ### 📢 Next Steps: - Try solving this problem on LeetCode after watching the video. - Explore related problems like **Kth Smallest Element in a BST** and **Binary Search Tree Iterator**. - Let us know in the comments which BST problem you’d like us to cover next! 👍 **Like, 💬 Comment, and 🔔 Subscribe** to **AlgoYogi** for more Python-based LeetCode solutions and coding interview tutorials! #LeetCode #PythonSolutions #BinarySearchTree #TreeTraversal #AlgoYogi #CodingInterview