网友收藏Codeforces E. New Year and Old Subsequence (线段树 + dp + 矩阵)_codeforces new year and old subsequence-CSDN博客文章浏览阅读250次。time limit per test3 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputA stringtis calledniceif a string "2017" occurs intas asubsequencebut a st..._codeforces new year and old subsequence... 2024-01-25 01:04 评论 0 阅读 阅读全文