Cod sursa(job #2066443)

Utilizator madalin98Gherghe Madalin madalin98 Data 15 noiembrie 2017 00:08:51
Problema Factorial Scor 10
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.31 kb
Raporteaza aceasta sursa 
#include<fstream>
#include<cmath>
using namespace std;
ifstream f("fact.in");
ofstream g("fact.out");
int main()
{
    long long n,k,p,i,a;
    f>>p;
    k=n=1;
    a=pow(10,p);
    if(p==2){g<<10;return 0;}
    while(k%a!=0)
    {
        ++n;
        k=k*n%(a*10);
    }
    g<<n;
    return 0;
}