Cod sursa(job #497828)

Utilizator andrei_stoicaStoica Andrei Florian andrei_stoica Data 3 noiembrie 2010 12:31:56
Problema Factorial Scor 75
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.36 kb
Raporteaza aceasta sursa 
#include <fstream>
using namespace std;
ifstream in("fact.in");
ofstream out("fact.out");   
int main()
{
	int p, n=0, r=0, m;
	in>>p;
	while (n<=p*5)
	{
		n=n+5;
		m=n;
		r++;
		while(n%25==0)
		{
			n=n/5;
			r++;
		}
		n=m;
		if (r==p)
		{
			out<<n;
			return 0;
		}
	}
	if (p==0)
	{
		n=1;
		out<<n;
		return 0;
	}
	n=-1;
	out<<n;
}