2011 - Episode I Problem A

#include <fstream>

using namespace std;

int main()
{
    int R(0), num(0);

    ifstream ifs("rating.in");
    ifs >> R;

    if (R % 2 == 0)
    {
        num = (R / 2);
    }
    else
    {
        num = (R % 2) + (R / 2);
    }

    ofstream ofs("rating.out");
    ofs << num;

}