[LeetCode] 532. K-diff Pairs in an Array 數組中差為K的數對
Given an array of integers and an integer k, you need to find the number of unique k-diff pairs in the array. Here a k-diff pair is defined ...
原文：[LeetCode] K Inverse Pairs Array K個翻轉對數組
Given two integersnandk, find how many different arrays consist of numbers from tonsuch that there are exactlykinverse pairs. We define an inverse pair as following: Forithandjthelement in the array, ...
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