Question: Let A [ 0 . . n 1 ] be an array of n real numbers. A pair ( A [ i ] , A

Let A[0..n 1] be an array of n real numbers. A pair (A [i], A[j]) is said to be an
inversion if these numbers are out of order, i.e., A[i]> A[j]. Design the most efficient algorithm for counting the number of inversions. What is the time complexity of your solution?

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