HDU 1018 Big Number （数学题）

 1 #include<cstdio>
 2 #include<cstring>
 3 #include<algorithm>
 4 #include<iostream>
 5 #include<cmath>
 6 #include<queue>
 7 using namespace std;
 8 const int maxn = 100000+5;
 9 double ans[maxn];
10 
11 double dabiao(int n)
12 {
13     double temp = 0;
14     for(int i = 1;i <= n;++i)
15     temp += log10((double)i);
16     return temp;
17 }
18 int main()
19 {
20     int T,n;
21     scanf("%d",&T);
22     while(T--)
23     {
24         scanf("%d",&n);
25         printf("%d\n",(int)dabiao(n) + 1);
26     }
27     return 0;
28 }