Linked List

LinkedList.cpp

#include <iostream>

using namespace std;

class LinkedList {
public:
       LinkedList() {
                    start = NULL;             
       }
       void add(int d) {
            Node* n = new Node;
            if(start == NULL) {
                     start = n;
                     n->next = NULL;
                     n->data = d;         
            } else {
              n->next = start;
              n->data = d;
              start = n;       
            }
       }
       void display() {
            Node* ptr = start;
            
            while(ptr != NULL) {
                  cout << ptr->data << endl;
                  ptr = ptr->next;                
            }     
       }
private:
        struct Node {
          int data;
          Node* next;     
        };
        Node* start;
};

int main(int argc, char **argv)
{
    LinkedList a;
    a.add(20);
    a.add(32);
    a.display();
    
    system("pause");
    return 0;    
}