2016年9月29日
4Sum
摘要： Given an array S of n integers, are there elements a, b, c, and d in S such that a + b + c + d = target? Find all unique quadruplets in the array whic 阅读全文
posted @ 2016-09-29 21:27 wxquare 阅读(186) 评论(0) 推荐(0)
3Sum
摘要： Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the sum of 阅读全文
posted @ 2016-09-29 21:26 wxquare 阅读(175) 评论(0) 推荐(0)
2Sum
摘要： Given an array of integers, return indices of the two numbers such that they add up to a specific target. You may assume that each input would have ex 阅读全文
posted @ 2016-09-29 21:25 wxquare 阅读(205) 评论(0) 推荐(0)