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Re:其实这道题可以用这个公式In Reply To:其实这道题可以用这个公式 Posted by:slp at 2010-09-14 22:34:35 > 其实这道题可以用这个公式 > tmp = sum( log10(i) ) 0<i<=n > len(n!)=(int)(tmp)+1 > 打表即可过了... 500ms > 公式的证明我还不会,求证明: Followed by: Post your reply here: |
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