摘要：
。。。此道算法题的难点在于排除重复项，重复项真的好麻烦。。。 Given an array nums of n integers and an integer target, are there elements a, b, c, and d in nums such that a + b + c 阅读全文
摘要：
Given a sorted array nums, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra spa 阅读全文
摘要：
Given an array nums of n integers and an integer target, find three integers in nums such that the sum is closest to target. Return the sum of the thr 阅读全文