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Cod sursa(job #162711)
#include<fstream.h>
unsigned long int i,j,N,p,nr;
int main()
{ifstream fin("fractii.in");
ofstream fout("fractii.out");
fin>>N;
for(i=1;i<=N;i++)
for(j=1;j<=N;j++)
{p=1;
//if(i%j==0 && j==1)p=1;
// else if(i==1 && j==1)p=1;
if(i%j==0 && j!=1 ) p=0;
else if(j%i==0 && j!=1&&i!=1) p=0;
if(p) {nr++;
//cout<<i<<"/"<<j<<endl;
}
}
fout<<nr;
fin.close();
fout.close();
return 0;
}