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Re:其实想一想prime最小的为2.long long 为64位超过10^18. 所以就算每次把数组中的所有数求出来也是相当少的.

Posted by GetAC at 2008-10-04 21:52:45 on Problem 2545
In Reply To:原来是这样。。。要是i==10^18,那真是比较恐怖了。。 Posted by:hmlog at 2008-10-04 21:49:16


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