随笔分类 -  矩阵

hdu 6155（线段树+dp+矩阵）
摘要：Given a binary string S[1,…,N]S[1,…,N] (i.e. a sequence of 0’s and 1’s), and QQ queries on the string. There are two types of queries: Flippin... 阅读全文
posted @ 2017-09-19 21:17 黑码的博客 阅读(132) 评论(0) 推荐(0)