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摘要： Problem: A Range Module is a module that tracks ranges of numbers. Your task is to design and implement the following interfaces in an efficient manne 阅读全文

摘要： Problem: Given a set of non-overlapping intervals, insert a new interval into the intervals (merge if necessary). You may assume that the intervals we 阅读全文

摘要： Problem: Given an array nums, we call (i, j) an important reverse pair if i < j and nums[i] > 2*nums[j]. You need to return the number of important re 阅读全文

摘要： Problem: You are given an integer array nums and you have to return a new counts array. The counts array has the property where counts[i] is the numbe 阅读全文