Cod sursa(job #405691)
Utilizator | Data | 28 februarie 2010 17:24:08 | |
---|---|---|---|
Problema | Fractii | Scor | 0 |
Compilator | cpp | Status | done |
Runda | pregatire_oji | Marime | 0.29 kb |
#include <fstream.h>
int n,i,j,nr=0;
int main() {
ifstream fin("fractii.in");
ofstream fout("fractii.out");
fin>>n;
for (i=1; i<=n; i++)
for (j=1; j<=n; j++) {
if (i%j!=0 && j%i!=0)
nr++;
}
fout<<nr+n+n-1;
fin.close();
fout.close();
return 0;
}