Triplete

void triplete(int a,int b,int c)
{
	int ok=0,x,y,z;
	for(x=a;x<=b&&x<=c/3;++x)
		for(y=x;y<=b&&x+2*y<=c;++y)
        {
			z=c-x-y;
			if(z>=y&&z<=b)
			{
				ok=1;
				cout<<"{"<<x<<","<<y<<","<<z<<"}\n";

			}

        }
	if(ok==0)
		cout<<"nu exista";
}