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Re:好象全排列,但要不要高精啊??In Reply To:好象全排列,但要不要高精啊?? Posted by:fjnu_jxd_010 at 2005-08-21 13:58:18 应该要高精度，因为__int64没法存19位的十位数。另外，全排列可能会花很长时间。我是采用了一种类似进位制的方法，先把输入的n减1再转化成二进制，然后看哪几位为1，输出3的对应次幂。具体关系自己慢慢看吧，:) Followed by: Post your reply here: |
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