Cod sursa(job #189112)

Utilizator BooZZySandu Bogdan BooZZy Data 12 mai 2008 09:43:51
Problema Fractii Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.32 kb
Raporteaza aceasta sursa 
#include<fstream.h>
int n,a,b,c,D=0,i,q,j;
int cmmdc(int a, int b)
	{
	  if(b!=0) return cmmdc(b,a%b);
	    else return a;
	}
int main()
{
ifstream f("fractii.in");
ofstream g("fractii.out");
f>>n;
	for(i=1;i<=n/2;i++)
	for(j=1;j<=n;j++)
	      if(cmmdc(i,j)==1)D+=2;
g<<D;
f.close();
g.close();
return 0;
}