Cod sursa(job #278377)
| Utilizator |  Onutu Catalin beyond_k7a |
Data | 12 martie 2009 11:55:26 |
|---|---|---|---|
| Problema | Fractii | Scor | 10 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.33 kb |
#include<fstream.h>
int cmmdc(long a, long b)
{
while(a!=b)
if(a>b)
a-=b;
else
b-=a;
return a;
}
long int n,i,j,nr=0;
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+=1;
g<<nr;
f.close();
g.close();
return 0;
}