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Re:请求加强数据

Posted by 2017214311 at 2019-06-26 20:12:43 on Problem 1228
In Reply To:Re:请求加强数据 Posted by:miaojiexiaa at 2019-05-25 16:25:53
> Input:
> 1
> 7
> 0 0
> 1 0
> 2 0
> 2 1
> 2 2
> 1 2
> 0 2
> 
> Output:
> NO

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