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Kth Smallest Element in a BST

medium Solve on LeetCode

Last edited: January 4, 2026

Problem
Examples
Solution
Video explanation
Method 1 - Naive Inorder Traversal to List
Intuition
Approach
Code
Complexity
Method 2a - Recursive Inorder Traversal with counter
Code
Complexity
Method 2b - Recursive inorder traversal with countdown
Intuition
Approach
Code
Method 3 - Iterative Inorder Traversal 🏆
Intuition
Approach
Code
Complexity

video explanation

Related Tags

binary-search-tree binary-tree bst-binary-search-tree leetcode video

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