Solution: Reverse Pairs
Explore how to count reverse pairs in an integer array by applying a sorted merge technique combined with the two-pointer search strategy. Understand the divide-and-conquer solution that efficiently identifies pairs where one element is more than twice another, optimizing your approach to sorting and searching challenges.
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Statement
You are given an integer array, nums. Your task is to count how many reverse pairs exist in the array and return the total number of such pairs. ...