Cod sursa(job #711385)

Utilizator PirvuMihaiPirvu Mihai PirvuMihai Data 11 martie 2012 23:49:33
Problema Factorial Scor 25
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.34 kb
Raporteaza aceasta sursa 
#include <fstream>
#include <iostream>
using namespace std;
ifstream f("fact.in");
ofstream g("fact.out");
int main ()
{
	int p,nr=0,i=1,q;//long int n;
	f>>p;
	if((p+1)%6==0) g<<"-1";
	else
	{
		while(nr!=p)
		{
			i++;q=5;
			while(i%q==0)
			{
				nr++;
				q*=5;
			}
		}
		g<<i;
	}
	f.close();
	g.close();
	return 0;
}