#include "listclass.h"

class MyStack : public List
{
   public:
      void push(const Item entry)
      {
         insert(entry);
      }
      Item pop()
      {
         assert(size() > 0);
         double ans = current();
         remove_current();
         return ans;
      }
      Item peek()
      {
         Item ans;
         assert(size() > 0);
         ans = current();
         return ans;
      }
};

void main()
{
   MyStack s1;
   for (int i = 0; i < 30; i++)
      s1.push(i);
   cout << "Top = " << s1.peek() << endl;
   cout << "Size = " << s1.size() << endl;
   for (int i = 0; i < 30; i++)
      cout << s1.pop() << " ";

}