Cod sursa(job #394382)

Utilizator meandyou01George Tudor meandyou01 Data 10 februarie 2010 19:42:36
Problema Fractii Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.27 kb
Raporteaza aceasta sursa 
#include<fstream.h>
#include<math.h>
ifstream fin("fractii.in");
ofstream fout("fractii.out"); 
long n,i,s;
int main()
{fin>>n;s=n;
   for(i=3;i<=n;i+=2)
    s=s+ceil((float)(i-1)*n/i);
   s=s+(n/2.0)*(n/2.0);

fout<<s;
fin.close();
fout.close(); 
return 0;
}