Search⌘ K
AI Features
Home
Courses
Learn Data Structures and Algorithms in C#

Problem: Kth Smallest Element in a BST

Explore how to find the kth smallest element in a binary search tree by applying an iterative inorder traversal. Understand the use of a stack to control traversal, stop at the kth node efficiently, and analyze the solution's time and space complexity for balanced and skewed trees.

We'll cover the following...

Statement

Given the root of a binary search tree and an integer k, return the kthk^{th} smallest value (11-indexed) among all node values in the tree.

Note: If the BST is modified frequently (i.e., with insert and delete operations) and you need to find the kthk^{th} smallest element repeatedly, how would you optimize your approach?

Constraints:

  • The number of nodes in the tree is n.

  • 1≤1 \leq k ≤\leq n ≤104\leq 10^4 ...