Cod sursa(job #10600)
Utilizator | Data | 28 ianuarie 2007 19:18:39 | |
---|---|---|---|
Problema | Fractii | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.34 kb |
using namespace std;
#include<fstream>
int main(){
ifstream f("fractii.in");
ofstream g("fractii.out");
long long n, p, nr, q, s, i;
f>>n;
p=1;
nr=0;
while (p<=n){
q=1;
while (q<=n){
s=0;
for (i=2;i<=q&&s==0;i++)
if ((q%i==0)&&(p%i==0)) s=1;
if (s==0) nr++;
q++;
}
p++;
}
g<<nr<<endl;
return 0;
}