震惊!最终答案出负数竟是因为……

P1641 [SCOI2010] 生成字符串

捕捉花姐姐 $qwq$
by 暮天闻角 @ 2018-08-05 20:11:41


一拳一个……花姐qwq
by Mr_QwQ @ 2018-08-05 20:16:52


花姐~
by Chiole @ 2018-08-05 20:20:29


@[暮天闻角](/space/show?uid=59636) 捕捉~~脚~~哥哥$qwq$(逃
by lajioj @ 2018-08-05 20:29:20


角哥哥赛高w! @[暮天闻角](/space/show?uid=59636)
by 皎月半洒花 @ 2018-08-05 20:30:41


求助:去看看我的贴好吗qwq 就是求组合数的乘法逆元的那个)
by currycodingg @ 2018-08-24 14:30:39


捕捉小花
by 血色黄昏 @ 2020-07-20 13:53:04


标题党举报了
by lndjy @ 2020-07-26 10:07:45


|