Cod sursa(job #314112)

Utilizator EugenStoicaEugen Stoica EugenStoica Data 10 mai 2009 16:44:42
Problema Fractii Scor 10
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.34 kb
Raporteaza aceasta sursa 
#include<stdio.h>

int valid(int a,int b)
{
while(a!=b)
	{
	if(a>b)a-=b;
	else b-=a;
	}
if(a==1)return 1;
return 0;
}

int main()
{
freopen("fractii.in","r",stdin);
freopen("fractii.out","w",stdout);
int n,sol=0,i,j;
scanf("%d",&n);
for(i=1;i<=n;i++)
	for(j=1;j<=n;j++)
		if(valid(i,j))sol++;
printf("%d",sol);
return 0;
}