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Given an array A of n integers, a leader element of the array A is the element that appears more than half of the time in A. Using one stack, implement in Java an O(n) running time complexity method static int leader(int[] A) to find a leader element and return the index (any) of the leader in A. The program must returns -1 if no leader element exists. Examples:int[] a = {23, 23, 67, 23, 67, 23, 45}; > leader(a) = 6int[] a = {23, 24, 67, 23, 67, 23, 45}; > leader(a) = -1

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