Given an unsorted array of size N . Find the first element in array such that all of its left elements are smaller and all right elements to it are greater than it. Note: Left and right side elements can be equal to required element. And extreme elements cannot be required element. Input: The first line of input contains an integer T denoting the number of test cases. Then T test cases follow. Each test case consists of two lines. First line of each test case contains an Integer N denoting size of array and the second line contains N space separated array elements. Output: For each test case, in a new line print the required element. If no such element present in array then print -1. Constraints: 1 <= T <= 100 3 <= N <= 10 6 1 <= A[i] <= 10 6 Example: Input: 3 4 4 2 5 7 3 11 9 12 6 4 3 2 7 8 9 Output: 5 -1 7 Explanation: Testcase 1 : Elements on left of 5 are smaller than 5 and on right of it are greater than 5. Execution Ti...