#include <iostream>

using namespace std;

class Scale
{
    double scale_factor;
public:
    Scale(void) : scale_factor(1.0) {}
    Scale(double actual, double desired) : scale_factor(1.0)
        { reset(actual,desired); }

    double operator() (void) const { return scale_factor; }
    double operator() (double x) const { return scale_factor * x; }

    void reset(double actual, double desired)
        { scale_factor = desired/actual; return; }
};

int main(void)
{
    Scale s;
    long d[10] = { 34, 56, 23, 76, 5, 12, 4, 48, 65, 30 };
    short i;
    long max;

    cout << "Initial scores:  ";
    for (i = 0; i != 9; i++)
    {
        cout << d[i] << ' ';
    }
    cout << d[i] << endl;

    max = d[0];
    for (i = 1; i != 10; i++)
    {
        if (d[i] > max)
        {
            max = d[i];
        }
    }
    cout << "\nMaximum value:  " << max << endl;

    cout << "\nScaling to 100";
    s.reset(max, 100);
    for (i = 0; i != 10; i++)
    {
        d[i] = long(s(d[i])+0.5);    // round too, why not?
        cout << ((i+1)%3 == 0 ? "." : "");   // a . every 33% or so
    }

    cout << "\n\nScaled scores:  ";
    for (i = 0; i != 9; i++)
    {
        cout << d[i] << ' ';
    }
    cout << d[i] << endl;

    return 0;
}