Cod sursa(job #428594)

Utilizator dtoniucDaniel Toniuc dtoniuc Data 29 martie 2010 13:30:23
Problema Factorial Scor 10
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.33 kb
Raporteaza aceasta sursa 
#include <iostream>
#include <fstream>
using namespace std;
int main ()
{
	int p,n=0,nr=0;
	ifstream fin("fact.in");
	ofstream fout("fact.out");
	fin>>p;
	if (p==0) fout<<"1";
	else 
	while (p>=0)
	{
		n+=5;
		nr=n;
		while (nr%5==0)
		{
			p-=1;
			nr=nr/5;
		}	
	}
	if(p<0) fout<<"-1";
	else fout<<n;
	return 0;
}