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Grokking the Coding Interview Patterns in C++

Two Sum IV - Input Is a BST

Explore how to apply breadth-first search to identify whether two elements in a binary search tree sum to a given integer k. This lesson helps you understand the problem constraints, develop a logical approach, and implement a solution to solve the classic Two Sum IV problem in BSTs.

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Statement

Given the root of a binary search tree and an integer k, determine whether there are two elements in ...