摘要：
Description:Given an array of integers, find if the array contains any duplicates. Your function should return true if any value appears at least twic... 阅读全文
摘要：
Description:Given an array of integers and an integerk, find out whether there there are two distinct indicesiandjin the array such thatnums[i] = nums... 阅读全文
摘要：
Description:Find the total area covered by tworectilinearrectangles in a2Dplane.Each rectangle is defined by its bottom left corner and top right corn... 阅读全文