Cod sursa(job #1644692)

Utilizator adiaioanaAdia R. adiaioana Data 10 martie 2016 08:25:33
Problema Factorial Scor 25
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.35 kb
Raporteaza aceasta sursa 
#include <fstream>

using namespace std;
ifstream fin("fact.in");
ofstream fout("fact.out");
int N,p,nrz;
int mult(int N)
{
    int c=N,p=0;
    while(c%5==0)
        c/=5,p++;
    return p;
}
int main()
{
    fin>>p;
    N=0;
    nrz=0;
    do{
        N+=5;
        nrz+=mult(N);
    }while(nrz<=p);
    fout<<N-5;
    return 0;
}