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pku3460谁能告诉下第二组数据怎么出来的?

Posted by wangyeweikuer at 2007-11-22 10:39:17
pku3460谁能告诉下第二组数据怎么出来的?我怎么算都是4次啊。谁能告诉我一下吗?谢谢了。

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