2019年2月28日
1057 Stack （分块思想）
摘要： Stack is one of the most fundamental data structures, which is based on the principle of Last In First Out (LIFO). The basic operations include Push ( 阅读全文
posted @ 2019-02-28 02:12 Johnny、 阅读(432) 评论(0) 推荐(1) 编辑
1034 Head of a Gang （边不重复 dfs+map）
摘要： One way that the police finds the head of a gang is to check people's phone calls. If there is a phone call between A and B, we say that A and B is re 阅读全文
posted @ 2019-02-28 00:14 Johnny、 阅读(191) 评论(0) 推荐(0) 编辑