by かなで @ 2018-06-22 20:22:45
太强啦，这都被你发现了
by LCuter @ 2018-06-22 20:33:23
说得太对啦！！！
by Ureka_Gestalt @ 2018-06-25 14:42:23
[233](https://www.luogu.org/record/show?rid=8225493)
by Trie自动机 @ 2018-07-07 19:32:30
@[刘星宇0508](/space/show?uid=34500) %%%
by FCBM71 @ 2018-08-06 16:13:01
%%%
by nth_element @ 2018-08-07 15:59:59