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 @ 2018-01-06 21:37 知行-zhixing 阅读(516) 评论(0) 推荐(0) 编辑