Cod sursa(job #283429)
| Utilizator |  Iagar Robert xblade |
Data | 19 martie 2009 09:47:24 |
|---|---|---|---|
| Problema | Fractii | Scor | 0 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.34 kb |
#include<fstream.h>
ifstream in("fractii.in");
ofstream out("fractii.out");
long n;
int cmmdc(int a,int b)
{
while(a!=b)
{
if(a>b)
a=a-b;
else
if(a<b)
b=b-a;
}
return a;
}
int main()
{
in>>n;
long i,j,c=0;
for(i=1;i<n;i++)
for(j=1;j<=n;j++)
if(cmmdc(i,j))
c++;
out<<c-1;
return 0;
}