kkksc03 @ 2015-10-11 16:43:51
http://www.luogu.org/problem/show?pid=2621
请按照要求进行评测。
by kkksc03 @ 2015-10-11 16:47:10
@[url=/space/show?uid=1]kkksc03[/url] 民间答案，仅供参考
by wzzq @ 2015-10-11 17:04:35
求普及
by xuan__xuan @ 2015-10-11 17:24:31
@[url=/space/show?uid=1]kkksc03[/url] 求普及组的，谢谢啦
by Guo1 @ 2023-08-12 20:54:54
考古