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麻烦解释下……N 是什么？ 这是算什么的函数？In Reply To:Re:这题也是……比赛时2xxx ms过的……到这就改1000 ms Limit了……TLE…… 那位大大给讲讲算法？ Posted by:20053565 at 2007-05-02 15:33:50 > long cal(int n)
> {
> if(n<2)
> return 0;
> return (n/2+cal(n/2));
> }
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