Solution: Two Sum IV - Input Is a BST
Explore how to determine if two nodes in a binary search tree add up to a target value k using breadth-first search. Understand the use of sets to track visited node values and efficiently identify complements during traversal. This lesson covers implementation, time complexity of O(n), and practical problem-solving strategies for BSTs.
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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