#include <iostream>
#include <vector>
using namespace std;
 
class Base
{
public:
    Base() {x = 0;}
    virtual void Display()= 0;
protected:
    int x;
};
 
class Derived1 : public Base
{
public:
    Derived1() { x = 1;}
    virtual void Display() { cout << "This is Derived1\n";}
};
 
class Derived2 : public Base
{
public:
    Derived2() {x = 2;}
    virtual void Display() { cout << "This is Derived2\n";}
};
 
int main () {
    vector<Base*> theList;
    Derived1 * pD1 = new Derived1;
    theList.push_back(pD1);
    Derived2 * pD2 = new Derived2;
    theList.push_back(pD2);
 
    vector<Base*>::iterator it;
    for( it = theList.begin(); it != theList.end(); it++)
       (*it)->Display();
 
}

class staffmember  //declared as abstract base class
{
    private:
       int ID;
       string name;
       char type;
       double wage;
 
    public:
       virtual getID() = 0;
       virtual string getName() = 0;
       virtual char getType() = 0;
       virtual double getWage() = 0;
};
 
class Manager : public staffmember
{
    public:
      Manager(){type = 'M';} 
      //mutator functions here, left out of this example
 
      //the following accessor functions are all overridden virtual functions
      int getID() {return ID;}
      string getName() {return name;}
      char getType() {return type;}
      double getWage() {return wage;}
};
 
//similar for Casual class here
 
//declare vector of staffmember pointers
vector<staffmember *> employees;
 
//declare a Manager object
Manager m;
 
//fill variables of m as needed here
//add m to employees
employees.push_back(&m);
 
//declare a Casual object
Casual c;
//fill variables of c as needed
//add c to employees;
employees.push_back(&c);
 
//display employees
int len = employees.size();
for(int i = 0; i < len; ++i)
{
   cout << "employee with index " << i  << ": " << endl;
  employees[i]->getID();
  cout << endl;
  employees[i]->getName();
  cout << endl;
  employees[i]->getType();
  cout << endl;
  employees[i]->getwage();
  cout << endl << endl;
}