Cod sursa(job #551646)

Utilizator DevastatorMarius Adelin Devastator Data 10 martie 2011 22:05:28
Problema Fractii Scor 10
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.3 kb
Raporteaza aceasta sursa 
#include<fstream.h>
ifstream f("fractii.in");
ofstream g("fractii.out");
int i,j,a,b,n,nr;
int main()
{
	f>>n;
	for(i=1;i<=n;i++) for(j=1;j<=n;j++)
	{
		a=i;
		b=j;
		while(a!=b)
		{
			if(a>b) a=a-b;
			else b=b-a;
		}
		if(a!=1) nr++;
	}
	g<<n*n-nr;
	f.close();
	g.close();
	return 0;
}