就红题有什么经验（不是
by Katz @ 2022-09-26 20:48:13
A + B 好像是三倍）
by xx3333333333333 @ 2022-09-26 20:57:22
@[lovelyseele](/user/779995) 六倍
by _Give_up_ @ 2022-09-26 21:01:14
好吧
by xx3333333333333 @ 2022-09-26 21:01:58
推荐[这](https://www.luogu.com.cn/training/211784)
by gongziwen @ 2022-09-26 21:48:03