Solution: Two Sum IV - Input Is a BST
Understand how to solve the Two Sum IV problem in a binary search tree using a breadth-first search approach. This lesson teaches you to use a set to track visited values and identify complements that sum to a given target, ensuring efficient traversal and checking within the tree. By the end, you'll be able to implement a solution that runs in linear time with respect to the number of nodes.
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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