Podcast
Questions and Answers
What is a linked list used for?
What is a linked list used for?
Storing a collection of data where each element is a separate object.
What is the first node in a linked list called?
What is the first node in a linked list called?
Head
What are the two main parts of a node in a linked list?
What are the two main parts of a node in a linked list?
Data field and pointer field.
Which of the following is true about the size of a linked list?
Which of the following is true about the size of a linked list?
Signup and view all the answers
What does the last node in a linked list point to?
What does the last node in a linked list point to?
Signup and view all the answers
What is a doubly linked list?
What is a doubly linked list?
Signup and view all the answers
In a circular linked list, the last node's pointer contains the address of the first node.
In a circular linked list, the last node's pointer contains the address of the first node.
Signup and view all the answers
Which operation does NOT belong to linked list operations?
Which operation does NOT belong to linked list operations?
Signup and view all the answers
Study Notes
Linked Lists Overview
- Linked lists are dynamic data structures that can grow and shrink in size during program execution, unlike arrays which have a fixed size at declaration.
- Each element in a linked list is called a node, comprising a data field (the value) and a pointer field (address of the next node).
- Nodes are accessed sequentially, with the first node known as the 'head' and the last node pointing to null.
Types of Linked Lists
- Singly Linked List: Basic structure with a single pointer to the successor node.
- Doubly Linked List: Contains two pointers - one to the next node (right pointer) and one to the previous node (left pointer).
- Circular Linked List: The last node's pointer links back to the first node, creating a circular structure.
Node Structure
- Nodes are illustrated by showing the data field, with pointers indicating the address locations of adjacent nodes.
- In a doubly linked list, arrows represent connections to both the next and previous nodes, with null indicators for the first and last nodes.
Operations on Linked Lists
- Display: Lists the elements contained in the linked list.
- Insert: Adds new elements to the list at specified positions.
- Delete: Removes particular elements or all instances from the list.
- Search: Locates a specific element within the list.
- Count: Returns the total number of elements present in the list.
Linked List vs Arrays
- Memory Utilization: Linked lists utilize memory more efficiently as they allocate space at runtime, whereas array sizes are predetermined.
- Element Access: Linked lists allow for random element access due to their pointer structure, while arrays provide indexed access.
- Iteration: Iteration in linked lists involves traversing from one node to the next, whereas arrays allow direct access to elements.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
This quiz explores the fundamentals of linked lists, focusing on their dynamic nature compared to arrays. Students will learn how linked lists can grow and shrink during program execution, and understand the positioning of elements within the data structure.
