Cod sursa(job #532810)
| Utilizator |  Secrieru Radu radu.secrieru |
Data | 12 februarie 2011 15:46:44 |
|---|---|---|---|
| Problema | Factorial | Scor | 15 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.35 kb |
#include<fstream>
using namespace std;
int zero(int n)
{
if(n<0) return -1;
if(n==0) return 1;
int i=5*n;
int j=5;
n=0;
while(j<i)
{
j*=j;
int k=1;
while(j*k<i)
{n++;k++;}
if(k<5 && j==5) j=10;
}
return i-5*n;
}
int main()
{
int n;
ifstream f("fact.in");
ofstream g("fact.out");
f>>n;
g<<zero(n);
return 0;
}