Cod sursa(job #400565)

Utilizator de3de3Ilinca Diana Andreea de3de3 Data 21 februarie 2010 17:13:31
Problema Fractii Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.25 kb
Raporteaza aceasta sursa 
#include<fstream.h>
ifstream f("fractii.in");
ofstream g("fractii.out");
long n, i, j;
long long nr;
int main(){
	f>>n;
	for(i=2;i<=n;i++)
		for(j=2;j<=n;j++)
			if(i%j!=0&&j%i!=0)
				nr++;
	g<<nr+2*n-1;
	f.close();
	g.close();
	return 0;
}