1. Pair with Given Sum in a Balanced BST Problem Statement You are given the ‘root’ of a Balanced Binary Search Tree and an integer ‘target’. Your task is to determine if there exists any pair of nodes such that the sum of their values equals the target. Specifically, check if any two distinct nodes have a sum equal to ‘target’. Example: Input: ROOT = 5 2 6 -1 -1 -1 -1, target = 8 Output: true Explanation: Here, the nodes with values 2 and 6 sum to 8. Constraints: 1 <= T <= 10 1 <= N <= 1000 0 <= data <= 10^3 0 <= target <= 10^3 Time Limit: 1 sec Input: The first line of input contains a single integer ‘T’, representing the number of test cases. Each test case includes: 1. the elements in level order, with `-1` indicating a null node,2. a line with a single integer ‘target’ denoting the target sum. Output: Output a single line per test case, indicating 'true' or 'false' if a pair exists. Note: Implement the function without handling input/output—they are managed for you.
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