Cod sursa(job #605849)

Utilizator cosminx2003Cosmin Clapon cosminx2003 Data 2 august 2011 14:33:44
Problema Factorial Scor 10
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.33 kb
Raporteaza aceasta sursa 
#include <fstream.h>

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

int main()
{
	int p;
	f>>p;
	int i=0,n=4*p,x=n;
	
	while((n++)%5!=0);
	n--;
	
	while(i<p)
	{
		i=0;
		x=n;
		while(x>0)
		{
			x=x/5;
			i+=x;
		}
		n+=5;
	}
	
	if(i==p)
		g<<(n-5);
	else
		g<<-1;
	
	f.close();
	g.close();
	
	return 0;
}