Traversal in a Singly Linked List
Explore how to traverse a singly linked list by visiting each node from the head to the end. Learn efficient traversal methods using a temporary pointer, understand linear time complexity, and avoid common errors such as modifying the head or infinite loops. Practice coding exercises to count nodes, search values, and collect nodes in Python.
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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 ...