Cod sursa(job #870329)

Utilizator alexarnautuArnautu Alexandru alexarnautu Data 3 februarie 2013 11:08:17
Problema Factorial Scor 5
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.29 kb
Raporteaza aceasta sursa 
#include <cstdio>

using namespace std;

long long p, n, i, x, ap;

int main()
{
    freopen("fact.in", "r", stdin);
    freopen("fact.out", "w", stdout);

    scanf("%lld", &p);

    n = p;

    while(p%5==0)
	{
		p/=5;
		ap++;
    }

    n -= ap;


    printf("%d", n * 5);


    return 0;
}