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by 蒟蒻炒扇贝 @ 2020-07-10 20:26:13
@[洛谷是大佬](/user/52315)
上古题目，不想加强了（
by StudyingFather @ 2020-07-10 20:29:49
有A*内味了
by FunnyCreatress @ 2020-07-10 20:30:10
$$qwq$$
by 洛谷是大佬 @ 2020-07-10 20:32:31
@[StudyingFather](/user/22030)
似乎 08 以前的奶牛题常被暴力碾（（（（
by Aw顿顿 @ 2020-07-10 21:26:27