Cod sursa(job #559848)
Utilizator | Zaharescu Adrian adysk | Data | 18 martie 2011 10:12:28 |
---|---|---|---|
Problema | Fractii | Scor | 10 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.47 kb |
#include<fstream.h>
ifstream fin("fractii.in");
ofstream fout("fractii.out");
int n,i,j,s=0,k;
int divi(int x,int y)
{
int r;
while(y!=0)
{
r=x%y;
x=y;
y=r;
}
if(x==1)
s++;
return 0;
}
int per()
{
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
{
if(i%2==0&&j%2==0)
continue;
divi(i,j);
}
return 0;
}
int main()
{
fin>>n;
per();
fout<<s;
fin.close();
fout.close();
}