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Re:请教,这道题目是不是应该用筛选法~~~?请高手指点啊!

Posted by derness at 2007-07-27 21:46:31 on Problem 3292
In Reply To:请教,这道题目是不是应该用筛选法~~~?请高手指点啊! Posted by:derness at 2007-07-27 19:11:55
上面代码贴错了
不过的我筛选法计算789的时候,得出的结果是63。
是不是因为441=9*49同时441=21*21,441就的删除出去????

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