Linked List C Practice Questions: A Comprehensive Guide
Are you looking to enhance your C programming skills by tackling linked list problems? If so, you’ve come to the right place. In this article, we will delve into a variety of linked list practice questions designed to challenge and improve your understanding of this fundamental data structure. Whether you’re a beginner or an experienced programmer, these questions will help you master the intricacies of linked lists in C.
Basics of Linked Lists in C
Before we dive into the practice questions, let’s briefly review the basics of linked lists in C. A linked list is a linear data structure consisting of nodes, where each node contains data and a reference (or link) to the next node in the sequence. This structure allows for efficient insertion and deletion of elements, making it a popular choice for various applications.
Here’s a simple representation of a linked list node in C:
struct Node { int data; struct Node next;};Practice Questions
Now, let’s move on to the practice questions. We will cover a range of topics, including creating a linked list, traversing the list, searching for an element, inserting and deleting nodes, and more.
Question 1: Create a Linked List
Write a C program to create a linked list with the following elements: 1, 2, 3, 4, 5. The output should display the linked list as: 1 -> 2 -> 3 -> 4 -> 5 -> NULL.
Question 2: Traverse a Linked List
Given a linked list, write a C program to traverse the list and print each element. The output should be: 1, 2, 3, 4, 5.
Question 3: Search for an Element
Write a C program to search for a specific element (e.g., 3) in a linked list. If the element is found, print “Element found.” Otherwise, print “Element not found.”
Question 4: Insert a Node at the Beginning
Write a C program to insert a new node at the beginning of a linked list. For example, if the list is 1 -> 2 -> 3 -> 4 -> 5, and you insert the value 0 at the beginning, the new list should be: 0 -> 1 -> 2 -> 3 -> 4 -> 5.
Question 5: Insert a Node at the End
Write a C program to insert a new node at the end of a linked list. For example, if the list is 1 -> 2 -> 3 -> 4 -> 5, and you insert the value 6 at the end, the new list should be: 1 -> 2 -> 3 -> 4 -> 5 -> 6.
Question 6: Insert a Node After a Given Node
Write a C program to insert a new node after a given node in a linked list. For example, if the list is 1 -> 2 -> 3 -> 4 -> 5, and you insert the value 7 after the node with value 3, the new list should be: 1 -> 2 -> 3 -> 7 -> 4 -> 5.
Question 7: Delete a Node
Write a C program to delete a node from a linked list. For example, if the list is 1 -> 2 -> 3 -> 4 -> 5, and you delete the node with value 3, the new list should be: 1 -> 2 -> 4 -> 5.
Question 8: Reverse a Linked List
Write a C program to reverse a linked list. For example, if the list is 1 -> 2 -> 3 -> 4 -> 5, the reversed list should be: 5 -> 4 -> 3 -> 2 -> 1.
Question 9: Merge Two Sorted Linked Lists
Write a C program to merge two sorted linked lists into a single sorted linked list. For example, if the first list is 1 -> 3 -> 5 and the second list is 2 -> 4 -> 6, the merged list should be: 1 -> 2 -> 3 -> 4 -> 5 -> 6.
