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过了~~激动~~~提供些自己做的数据。

Posted by zxy_snow at 2011-01-17 22:18:24 on Problem 2186
我的方法太繁琐了。恩。明天看看大牛们怎么做的吧。

我用的kosaraju再加一次DFS。1800MS险过~

第一道强连通题纠结了两天,这一道半天,哇咔咔。。。嘻嘻

继续努力~~

input
3 3
1 2
2 3
3 1

3 3
1 2
2 1
2 3

5 4
1 4
2 4
3 4
5 4

5 5
1 2
2 3
3 1
1 4
4 5

5 6
1 2
2 3
3 1
1 4
4 5
5 3

2 2
1 2
2 1

3 2
1 2
2 1

6 6
1 2
2 3
3 1
1 4
4 5
5 3

5 6
1 2
2 3
3 1
1 4
4 5
5 4

5 7
4 1
1 2
2 3
3 1
1 4
4 5
5 4

5 6
1 2
2 3
3 1
1 4
4 5	
5 1

7 9
1 2
2 3
3 1
4 5
5 6
6 4
4 7
7 1
1 7

6 6
1 2
2 3
3 1
4 5
5 6
6 4

4 4
1 2
2 3
3 1
1 4

4 4
1 2
2 3
3 1
4 1

5 6
1 2
2 3
3 1
5 1
5 4
3 4

7 9
1 2
2 3
3 1
5 1
5 4
3 4
4 7
7 6
6 4

output
3
1
1
1
5
2
0
0
2
5
5
4
0
1
3
1
3

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