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Re:求数据！！！！

Posted by fura2 at 2011-06-09 00:47:47 on Problem 2762
In Reply To:Re:求数据！！！！ Posted by:peargobble at 2011-03-19 20:51:13 
3rd example is wrong.
Correct answer is "Yes".

> 3
> 8 10
> 1 5
> 6 3
> 2 7
> 7 8
> 3 6
> 8 2
> 2 1
> 4 6
> 7 3
> 6 5
> 
> 5 8
> 1 2
> 2 3
> 3 4
> 1 3
> 1 4
> 2 4
> 4 5
> 5 4
> 
> 6 10
> 6 3
> 2 5
> 4 6
> 3 6
> 2 6
> 6 1
> 1 5
> 3 2
> 4 1
> 5 3
> 
> No
> Yes
> No
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