2020年7月29日
[P3523]DYN-Dynamite（二分+树形dp）
摘要： 【原题】 题目描述 The Byteotian Cave is composed of nnn chambers and n−1n-1n−1 corridors that connect them. For every pair of chambers there is unique way to 阅读全文
posted @ 2020-07-29 16:00 kurum! 阅读(187) 评论(0) 推荐(0)