DoublyLinkedList Class
Lesson 4 of 14 in Coddy's Doubly Linked List - Data Structures Series #6 course.
Challenge
EasyWrite a class DoublyLinkedList with a constructor that gets no input.
Initialize three fields:
headset tonull.tailset tonull.countset to 0.
Keep your Node class from the previous lesson above the DoublyLinkedList.
Try it yourself
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "doublylinkedlist.h"
int main() {
DoublyLinkedList ll;
DoublyLinkedList_init(&ll);
char line[256];
while (fgets(line, sizeof(line), stdin)) {
line[strcspn(line, "\r\n")] = '\0';
char* cmd = strtok(line, " \t");
if (!cmd) continue;
if (strcmp(cmd, "state") == 0) printf("%s %s %d\n", ll.head == NULL ? "true" : "false", ll.tail == NULL ? "true" : "false", ll.count);
}
return 0;
}
