11 2017 档案

区间dp
摘要：POJ2955 子串括号匹配 We give the following inductive definition of a “regular brackets” sequence: the empty sequence is a regular brackets sequence, if s is 阅读全文
posted @ 2017-11-23 21:06 wyboooo 阅读(106) 评论(0) 推荐(0) 编辑