Cod sursa(job #709267)

Utilizator alex.belcAlex Belc alex.belc Data 7 martie 2012 21:14:47
Problema Fractii Scor 10
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.35 kb
Raporteaza aceasta sursa 
#include <fstream>
using namespace std;
ifstream fi("fractii.in");
ofstream fo("fractii.out");
int cmmdc(int a,int b)
{
	int r;
	r=a%b;
	while (r)
	{
		a=b;
		b=r;
		r=a%b;
	}
	if (b==1) return 1;
	else return 0;
}
int main()
{
	int a,b,n,k=0;
	fi>>n;
	for (a=1;a<=n;a++)
		for (b=1;b<=n;b++)
			if (cmmdc(a,b)) k++;
	fo<<k;
	return 0;
}