hdu-1018亚洲赛区现场赛的水题吧？

#include<iostream>
#include<cstdio>
#include<cmath>
using namespace std;
double n,m;
double ans;
int main()
{
cin>>n;
while(n--)
{
cin>>m;ans=0.0;
for(double i=1;i<=m;i++)
ans+=log10(i);
printf("%.0lf\n",ans+0.5);
}
}