借楼，[这道题](https://www.luogu.com.cn/problem/P1587)题目看不懂啊，写不出来
by VitrelosTia @ 2022-12-03 18:47:44
借楼，[这道题](https://www.luogu.com.cn/problem/P1587)题目看不懂啊，写不出来
by ivyjiao @ 2022-12-03 18:52:03
@[_a_a_a_a](/user/890358) 洛谷讨论区不是你家的，请不要发送无意义帖子
by _wjr_ @ 2022-12-03 19:00:37