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奇怪

Posted by omycle at 2009-05-05 21:31:35 on Problem 1423 and last updated at 2009-05-05 21:32:42

int(log10(n!) = log10(sqrt(2 * pi * n)) + n * log10(n / e))+1
可以，但
ceil(log10(n!) = log10(sqrt(2 * pi * n)) + n * log10(n / e))
就WRONG answer
后来，我又试了试1，结果是0，所以我就判断了一下，如果是1，那么就直接输出1.但还是WA，
不知道为什么。难道是传说中的RP?
	        cin>>a;
		if(a==1)
		cout<<1<<endl;
		else
		cout<<ceil(log10(sqrt(2*PI*a))+a*log10(a/E))<<endl;

Followed by:

Re:奇怪 (19) ws200631430028 2009-05-30 09:11:14

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