摘要: K. Bookcase Solidity United — Grand Prix of Belarus — XXI Open Cup named after E.V. Pankratiev (yandex.ru) 题解 statement: $dp_{i,j,k}\(表示消除\)[i,j]$的架子, 阅读全文
posted @ 2021-02-19 22:39 WWW~~~ 阅读(187) 评论(0) 推荐(1)