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网络流只判断从点0出发是不对的,也不是重边的问题,给出一组数据

Posted by heavyshower at 2020-02-17 23:35:17 on Problem 3713 and last updated at 2020-02-17 23:36:09
网络流只判断从点0出发是不对的,也不是重边的问题,给出一组数据
6 11
0 1
0 2
0 3
0 4
0 5
1 2
1 3
2 3
3 4
3 5
4 5
这个图其实是样例1的图复制一份然后拼接在一起,让拼接处的一个点是0,发现此时点0到其它点就有三条满足题意的路径,而左上角到右下角的两点间没有

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