Cod sursa(job #517889)

Utilizator deiosxHalalai Tudor Andrei deiosx Data 30 decembrie 2010 09:44:59
Problema Factorial Scor 15
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.3 kb
Raporteaza aceasta sursa 
#include<fstream>
using namespace std;
fstream f("fact.in",ios::in);
fstream g("fact.out",ios::out);
int main()
{
	int x,y=0,s;
	f>>x;
	if(x==0)g<<1;
	else
	{
		y=x;
		if(x>=5)
		{	
			s=y/10;
			if(s%2==0)s--;
			if((y-s)%5==0)
				g<<-1;
			else
			g<<(y-s)*5;
		}
		else g<<x*5;
	}
}