还真就全是"Use Luogu!"…… ~~本来以为好歹要有几个不是的~~ by Mrwhite @ 2020-06-28 21:02:57
@[美琴](/user/118255) 这种正确答案代码请发布在题解区！ doge by zhangzhihao2 @ 2022-12-30 18:53:26