Cod sursa(job #30104)

Utilizator a7893Nae Mihai a7893 Data 12 martie 2007 21:18:35
Problema Fractii Scor 10
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.35 kb
Raporteaza aceasta sursa 
#include<stdio.h>
int cm(int a,int b)
{
	int r;
	r=a%b;
	while(r)
	{
		a=b;
		b=r;
		r=a%b;
        }
	return b;
}
int main()
{
	freopen("fractii.in","r",stdin);
	freopen("fractii.out","w",stdout);
	int i,j,n,nr=0;
	scanf("%d",&n);
	for(i=1;i<=n;i++)
		for(j=1;j<=n;j++)
			if(cm(i,j)==1)
				nr++;
	printf("%d\n",nr);
 return 0;
}