萌新只有36分,help!

P2774 方格取数问题

目前还没有回复
by liuzhaoxu @ 2020-11-17 15:34:13


只有黑点才需要向白点连边吧(?)
by 幻影星坚强 @ 2020-11-17 17:06:46


@[幻影星坚强](/user/111728) 已经过了,感谢大佬!
by 式呀式呀式呀 @ 2020-11-18 06:01:42


@[liuzhaoxu](/user/316961) 嘤嘤嘤
by 式呀式呀式呀 @ 2020-11-18 06:02:05


@[幻影星坚强](/user/111728) 为啥必须得连有向边啊?为啥无向边会WA?
by forlight @ 2020-12-22 10:28:49


@[forlight](/user/97238) ![](https://cdn.luogu.com.cn/upload/image_hosting/71gqcesv.png) 你可以看看这个图,中间的三条10000当成inf,原来3到汇点只有3->5->6,你连反向边后他又有了3->5->2->4->6这条路
by 幻影星坚强 @ 2020-12-22 10:52:45


@[幻影星坚强](/user/111728) 好嘞,谢谢大佬
by forlight @ 2020-12-22 12:14:14


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