Cod sursa(job #1609414)

Utilizator LizaSzabo Liza Liza Data 22 februarie 2016 19:53:46
Problema Fractii Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.32 kb
Raporteaza aceasta sursa 
#include <fstream>

using namespace std;
ifstream fin("fractii.in");
ofstream fout("fractii.out");
int n,i,f,x=0;
int nrdiv(int m){
    int i,f=0;
  for(i=2;i<=m/2;i++)  {
    f=f+(m/i)*(m/i-1);
  }
  return f;
}
int main()
{
    fin>>n;
    x=n*(n-1)+1;
    x=x-nrdiv(n);
    fout<<x<<"\n";

    return 0;
}