CCF早期题目……
by 削板军霸 @ 2021-08-24 18:02:28
@[MeteorDream](/user/552532) 同感
by _NTT_ @ 2021-08-26 16:50:24
@[ljqiscaiji](/user/652949) 输出0:0这样会更方便写程序吧，对我来说是更方便。。。
by ljqiscaiji @ 2021-12-27 11:54:50