Count longest subsequence in binary tree

Last updated: March 23, 2026

Quick Overview

Count the number of kth largest element in the given linked list.

Walmart
Coding & Algorithms
Software Engineer
Walmart
March 23, 2026
Software Engineer
Technical Screen
Coding & Algorithms
Easy

523

5

4,403 solved

Count the number of kth largest element in the given linked list.

How to Approach This
  1. Clarify input constraints and edge cases before writing code.
  2. Walk through your approach verbally and confirm with the interviewer before coding.
  3. Start with a brute force solution, then optimize. Mention time and space complexity.
  4. Test your solution with examples, including edge cases like empty input or duplicates.
  5. Consider common patterns: sliding window, two pointers, hash map, BFS/DFS, dynamic programming.
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