[BF写的题解~](https://www.luogu.com.cn/blog/bfqaq/solution-p2016)
by CLCK @ 2022-09-19 22:46:07
@[CLCK](/user/323183) 边要开两倍……
by Wilson_Lee @ 2022-09-21 20:19:06
@[Wilson_Lee](/user/513900) 啊啊啊啊啊
太久没写忘记了QAQ
感激不尽
by CLCK @ 2022-09-21 20:51:19