Question: Design a divide-and-conquer algorithm to solve the following problem in O(n log n) time: Given an integer array A of size n, compute the number

 Design a divide-and-conquer algorithm to solve the following problem in O(n

Design a divide-and-conquer algorithm to solve the following problem in O(n log n) time: Given an integer array A of size n, compute the number |S|, where S = {(i, j) | i A[j]}

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