Virtual Public Inheritance

#include <iostream>
using namespace std;

class Device {
public:
  // your code here: implement void show() to print "Generic Device"
  void show() { cout << "Generic Device" << endl; }
};

class Sensor : virtual public Device {
  // no extra code needed
};

class Actuator : virtual public Device {
  // no extra code needed
};

// your code here: define class SmartDevice inheriting publicly from Sensor and
// Actuator implement void identify() to print "Smart Device"
class SmartDevice : public Sensor, public Actuator {
public:
  void identify() { cout << "Smart Device" << endl; }
};

int main() {
  SmartDevice sd;
  sd.show();     // from Device
  sd.identify(); // from SmartDevice
  return 0;
}