#include "stack.h"

Stack::Stack()
{
  Content *top=0;
}

void Stack::push(int a)
{
  Content *c = new Content(a, top);
  top = c;
}

int Stack::pop()
{

  int d=top->getVal();
  top=top->getNext();
  return d;

}

Stack::~Stack()
{
  delete top;
}