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楼上的强!看帖回帖,好人品、、

Posted by AC123 at 2010-07-16 17:05:36 on Problem 1325
In Reply To:Re:虽然AC了但还是不怎么清楚这题为什么要这样构图??? Posted by:superDD at 2009-09-08 18:55:53
> 每个任务化为一条线,它连接着a[i]和b[j],问题转化为求(a[]和b[]中)最少的点,使得每条线都至少有一个端点被选(这个任务就完成了)。这个就是最小点覆盖的模型了。。。
> ps:
> a[i]==0||b[j]==0是不用考虑的。。。wa了N次。。。再显菜鸟风采。。。

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