USACO 2018 DEC Platinum 3 -- The Cow Gathering

发表于 2019-04-24 | 更新于 2019-06-17 | 分类于图论，拓扑 | 评论数：

摘要

Pickupwin 冷静分析了一下，发现这是一个经典问题

Hello World

发表于 2019-04-24 | 更新于 2019-06-17 | 评论数：

Welcome to Hexo! This is your very first post. Check documentation for more info. If you get any problems when using Hexo, you can find the answer in troubleshooting or you can ask me on GitHub.

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