Solution: Reverse Pairs

Explore how to count reverse pairs in an integer array by applying a divide-and-conquer strategy with sorting and binary search. Understand how to use a modified merge sort to organize data and efficiently identify pairs meeting the condition nums[i] > 2 * nums[j]. This lesson teaches you to break down the problem recursively, count valid pairs across sorted halves, and merge the results to gain an optimized solution with O(n log n) time complexity. Gain practical skills in solving sort and search pattern problems important for coding interviews.