Cod sursa(job #360121)
| Utilizator |  Asofronie Samuel samuel91 |
Data | 29 octombrie 2009 22:03:08 |
|---|---|---|---|
| Problema | Fractii | Scor | 0 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.32 kb |
#include<fstream.h>
int main()
{
long int n,r,i,j,nr=0;
ifstream f("fractii.in");
f>>n;
f.close();
ofstream g("fractii.out");
nr=4*n-5;
for(i=2;i<=n-1;i++)
{
for(j=i+2;j<=n;j++)
{
if(i%2==0&&j%2!=0)
nr=nr+2;
else if(i%2!=0&&j%i!=0)
nr=nr+2;
}}
if(n>=10&&n%2==0)
g<<nr-2;
else
g<<nr;
g.close();
return 0;
}
