Cod sursa(job #137118)

Utilizator busuAndrei Busuioc busu Data 16 februarie 2008 22:12:55
Problema Fractii Scor 10
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.35 kb
Raporteaza aceasta sursa 
#include<fstream.h>
#include<iostream.h>
int cmmdc(int i,int j)
{
	while(i!=j)
	if(i>j)
	i=i-j;
	else
	j=j-i;
	return i;
}
int main()
{
	int i,j,n,rez=0;
	fstream f("fractii.in",ios::in);
	f>>n;
	for(i=1;i<=n;i++)
	for(j=1;j<=n;j++)
	if(cmmdc(i,j)==1)
	rez++;
	f.close();
	fstream g("fractii.out",ios::out);
	g<<rez;
	g.close();
}