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如果用O(1)的算法求C(n, k)的奇偶性的话就是O(NL)的啊,不过我没明白那个 n & k == k怎么推的

Posted by limingfei at 2008-10-28 22:21:56 on Problem 3423
In Reply To:NL怎么做? Posted by:ziliang at 2007-11-11 13:03:14


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