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Re:其实这道题可以用这个公式

Posted by AB38017032 at 2012-07-30 15:44:52 on Problem 1423
In Reply To:Re:其实这道题可以用这个公式 Posted by:180365 at 2012-07-03 23:43:34
> 为什么我的超时?
> #include<iostream>   
> #include<cmath> 
> using namespace std;  
> int main()   
> {
> 	int n,i,t;
> 	double d;
> 	cin>>t;
> 	for(int a=0;a<t;a++)
> 	{
> 		cin>>n;
> 		d=0;
> 		for(i=1;i<=n;i++)   
> 			d+=log10((double)i);
> 		cout<<(int)d+1<<endl;
> 	} 
> 	//system("pause");
> 	return 0;
> }

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