Cod sursa(job #2609142)

Utilizator Hard_to_PronouncePetcu David Hard_to_Pronounce Data 2 mai 2020 11:21:23
Problema Factorial Scor 10
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.36 kb
Raporteaza aceasta sursa 

#include <fstream>

using namespace std;

ifstream f("fact.in");
ofstream g("fact.out");

long long n, p, pu = 25, nr, nrant;

int main()
{
    f >> p;
    n = p * 5;
    while (pu <= n)
    {
        int puc = pu;
        while (puc <= n)
        {
            n -= 5;
            puc += pu;
        }
        pu *= 5;
    }
    g << n;
}