一些不会的题。
https://www.luogu.com.cn/problem/CF1037H
https://www.luogu.com.cn/problem/P4770
https://www.luogu.com.cn/problem/CF666E
https://www.luogu.com.cn/problem/P4384
https://www.luogu.com.cn/problem/P4094
https://www.luogu.com.cn/problem/P6292
https://www.luogu.com.cn/problem/SP1812
posted on 2020-05-26 15:22 exzang 阅读(106) 评论(0) 编辑 收藏 举报
