Traversal in a Singly Linked List
Explore the process of traversing a singly linked list by sequentially visiting each node from the head to the end. Understand how traversal works in C++, including the use of temporary pointers to avoid modifying the head. Learn the linear time complexity involved and how to avoid common mistakes like infinite loops or losing the list start. This lesson equips you with practical skills to implement traversal, search, count nodes, and extract values effectively.
We'll cover the following...
By now, you understand how a linked list is organized in memory and how the head pointer gives access to the first node. Now, let’s learn how traversal works in a singly linked list. The focus will be on how the next references are followed from node to node and why this leads to linear time complexity.
Linked list traversal
Traversal means visiting each node in the linked list one by one. The process starts from the head and repeatedly follows the next reference until reaching NULL.
As linked lists do not support direct indexing, traversal is required to:
Print all elements in the list.
Search for a specific value.
Count the number of nodes.
Reach a specific node or position in the list.
How traversal works
To traverse a singly linked list:
Start from the
headnode.Access ...