chara =)
by Vivian_IMproved @ 2019-05-22 17:08:07
老哥，你用long long试试
by ACCCCC @ 2019-05-28 20:41:12
@[ACCCCC](/space/show?uid=142794) 老弟,long long [80分](https://www.luogu.org/recordnew/show/19264585)
by 蒻得不行 @ 2019-06-02 15:55:29