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Re:贴几组数据

Posted by squarefk at 2012-03-02 22:40:30 on Problem 3659
In Reply To:贴几组数据 Posted by:buaabarty at 2011-11-01 15:44:38 
> Input for test 1
> 
> 5
> 1 3
> 5 2
> 4 3
> 3 5
> Output for test 1
> 
> 2
> Input for test 2
> 
> 7
> 1 2
> 1 5
> 2 3
> 3 4
> 5 6
> 6 7
> Output for test 2
> 
> 3
> Input for test 3
> 
> 30
> 1 8
> 1 18
> 28 8
> 21 8
> 23 1
> 28 26
> 21 5
> 18 3
> 18 19
> 3 15
> 23 12
> 14 3
> 28 30
> 21 10
> 9 15
> 17 19
> 19 4
> 10 27
> 6 26
> 6 11
> 9 16
> 15 22
> 10 24
> 9 25
> 17 20
> 2 12
> 13 1
> 4 29
> 7 26
> Output for test 3
> 
> 12
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