Cod sursa(job #1393818)

Utilizator sebi110Ciobanu Sebastian sebi110 Data 19 martie 2015 19:34:47
Problema Factorial Scor 10
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.31 kb
Raporteaza aceasta sursa 
#include <fstream>

using namespace std;
ifstream fin("fact.in");
ofstream fout("fact.out");
long long n,k,p,nr0;
int main()
{
    fin>>n;
    k=0;p=1;nr0=0;
    while(nr0!=n)
    {
        k++;
        p=p*k;
        while(p%10==0){nr0++;p=p/10;}
        p=p%1000;
    }
    fout<<k;
    return 0;
}