DevHireLab
TutorialsBootcamp
ProblemsCode SimulatorAI InterviewSoonContact
DevHireLab
TutorialsBootcamp
ProblemsCode SimulatorAI InterviewSoonContact
Back to Arena
easy
Binary Search

Two Sum in BST

**Problem Statement:** Given the required input arguments, write an efficient algorithm to solve the **Two Sum in BST** problem. Implement the required logic as specified by standard definitions for this classic algorithmic challenge. **Hint / Expected Approach:** BFS/DFS with hash set OR in-order + two pointer **Edge Cases to Consider:** - (1) BST with one node - (2) Target not achievable - (3) Same node used twice

Examples

Example 1
Input: [5,3,6,2,4,null,7], 9
Output: true
Explanation: 2+7 or 3+6
Example 2
Input: [5,3,6,2,4,null,7], 28
Output: false
Explanation: Too large
Example 3
Input: [2,1,3], 4
Output: true
Explanation: 1+3

Constraints

  • ▪Input arguments are within valid ranges
  • ▪Optimize for execution speed
  • ▪Handle null/empty inputs gracefully

Watch Out For Edge Cases

  • ▪BST with one node
  • ▪Target not achievable
  • ▪Same node used twice
Frequently Asked At
AmazonMicrosoftAdobeTCS