Cod sursa(job #1919478)

Utilizator ProCoderAgafitei Razvan ProCoder Data 9 martie 2017 19:41:25
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 f("fact.in");
ofstream g("fact.out");
int main()
{
    long long p,n,ni=5,r=1;
    f>>p;
    if(p==0)g<<1;
    else
    {
        n=p*5;
        while(ni*5<=n)
        {
            n-=r*5;r++;
            ni*=5;
        }
        g<<n;
    }
}