What is a real-world application of a doubly linked list?
Practice Questions
Q1
What is a real-world application of a doubly linked list?
Implementing a queue
Navigating a web browser's history
Storing a fixed-size array
Representing a graph
Questions & Step-by-Step Solutions
What is a real-world application of a doubly linked list?
Step 1: Understand what a doubly linked list is. It is a data structure where each element (node) has a reference to both the next and the previous element.
Step 2: Think about how web browsers work. When you visit websites, the browser keeps track of the pages you have visited.
Step 3: Realize that when you click the 'back' button, the browser needs to go to the previous page, and when you click 'forward', it needs to go to the next page.
Step 4: A doubly linked list allows the browser to easily move back to the previous page and forward to the next page because each page (node) knows about both its previous and next pages.
Step 5: Conclude that this ability to navigate back and forth is a practical application of a doubly linked list in web browsers.
