Solution: Two Sum IV - Input Is a BST
Explore how to determine if two nodes in a binary search tree sum to a target value by applying a breadth-first search pattern. Understand how to use a set to track visited nodes and efficiently check for complements. This lesson helps you implement and analyze the solution with clear time and space complexity insights.
We'll cover the following...
We'll cover the following...
Statement
Given the root of a binary search tree and an integer k, determine whether there are two elements in the BST whose sum equals k. Return TRUE if such elements exist or FALSE otherwise.
Constraints:
The number of nodes in the tree is in the range
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