Protected Access

#include <iostream>
using namespace std;

class BaseDevice {
protected:

      // your code here: declare protected int id
      int id;
};

class DerivedDevice : public BaseDevice {
public:

      // your code here: implement setId() and printId()
      void setId(int v)
      {
            id = v;
      }

      void printId(void)
      {
            printf("Device ID: %d\n", id);
      }
};

int main() {
   DerivedDevice d;
   d.setId(101);
   d.printId();
   return 0;
}