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Re:请教一下为什么是求n以内完全平方数个数?谢谢

Posted by weihaohaoren at 2013-01-10 19:53:41 on Problem 1218
In Reply To:Re:请教一下为什么是求n以内完全平方数个数?谢谢 Posted by:wywcgs at 2006-10-02 12:39:03
> 只有完全平方数才有奇数个因数
Orz啊,怎么想到的。。。。

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