// file: Node.h
//
// This file contains the definition of a class that implements
// a node in a linked list.
//

// system include files
//
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

// local include files

// class definition: Node
//
class Node {

protected:

  // define the data elements; key is for hashing
  //
  int data_d;
  int key_d; 
  Node *next_d;

public:

  // define the required methods
  //
  Node();
  ~Node();

  // define methods to get data
  //
  Node* get_next() {
    return next_d;
  }
  int get_data() {
    return data_d;
  }

  // define methods to put data
  //
  void put_next(Node* ptr_a) {
    next_d = ptr_a;
  }
  void put_data(int data_a) {
    data_d = data_a;
  }
  void put_key(int key_a){
    key_d=key_a;
  }

  // end of class
  //
};