#include <iostream.h>
// Define multiplier and box_car_volume first:
double multiplier ( ) {
  return h * w * l;                                     // BUG!
}
double box_car_volume (double h, double w, double l) {
  return multiplier ( );
}
// Then, define main:
main ( ) {
  cout << "The volume of the box car is "
       << box_car_volume (10.5, 9.5, 40.0) << endl;
  cout << "The value of the parameters are "
       << h << ", " << w << ", and " << l               // BUG!
       << endl;
}