Question: 2. (25 points) Array A = [a1, a2, ,anj is unsorted, design an 0(n log n)-time algorithm to report the number of inversions in A.

2. (25 points) Array A = [a1, a2, ,anj is unsorted,

2. (25 points) Array A = [a1, a2, ,anj is unsorted, design an 0(n log n)-time algorithm to report the number of inversions in A. An inversion is a pair of numbers ai and aj such that i

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