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根据自己的错误,自己拼凑了小数据,希望有助各位……

Posted by Very_2 at 2010-07-31 13:28:34 on Problem 1228 and last updated at 2010-07-31 13:29:27
9
0 0
1 0
2 0
2 1
2 2
0 2
0 1
1 3
0 4

YES

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