Cod sursa(job #415885)

Utilizator iulishorIulian Popescu iulishor Data 11 martie 2010 22:05:20
Problema Fractii Scor 10
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.33 kb
Raporteaza aceasta sursa 
#include<fstream>
using namespace std;
int cmmdc(int x,int y)
{
	int r;
	r=x%y;
	while(r)
	{
		x=y;
		y=r;
		r=x%y;
	}
	return y;
}
int n,nr,i,j;
int main()
{
	ifstream f("fractii.in");
	ofstream g("fractii.out");
	f>>n;
	for(i=1;i<=n;i++)
		for(j=1;j<=n;j++)
			if(cmmdc(i,j)==1)
				nr++;
	g<<nr;
return 0;
}