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Solution: Reverse Pairs

Explore how to efficiently count reverse pairs in an integer array by applying the sort and search pattern through a modified merge sort. This lesson guides you to implement a divide-and-conquer strategy to identify pairs where one element is more than twice another, optimizing beyond brute force methods to enhance problem-solving skills for coding interviews.

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. ...