Like array and linked list, unrolled Linked List is also a linear data structure and is a variant of linked list. Unlike simple linked list, it stores multiple elements at each node. That is, instead of storing single element at a node, unrolled linked lists store an array of elements at a node. Unrolled linked list covers advantages of both array and linked list as it reduces the memory overhead in comparison to simple linked lists by storing multiple elements at each node and it also has the advantage of fast insertion and deletion as that of a linked list.
- Because of the Cache behavior, linear search is much faster in unrolled linked lists.
- In comparison to ordinary linked list, it requires less storage space for pointers/references.
- It performs operations like insertion, deletion and traversal more quickly than ordinary linked lists (because search is faster).
- The overhead per node is comparatively high than singly linked lists. Refer an example node in below code.
Simple Implementation in C
The below program creates a simple unrolled linked list with 3 nodes containing variable number of elements in each. It also traverses the created list.
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In this article, we have introduced unrolled list and advantages of it. We have also shown how to traverse the list. In the next article, we will be discussing insertion, deletion and values of maxElements/numElements in detail.
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- Insertion in Unrolled Linked List
- Linked List | Set 1 (Introduction)
- Circular Linked List | Set 1 (Introduction and Applications)
- Doubly Linked List | Set 1 (Introduction and Insertion)
- Doubly Circular Linked List | Set 1 (Introduction and Insertion)
- Convert singly linked list into circular linked list
- XOR Linked List - A Memory Efficient Doubly Linked List | Set 1
- XOR Linked List – A Memory Efficient Doubly Linked List | Set 2
- Merge a linked list into another linked list at alternate positions
- Check if a linked list is Circular Linked List
- Construct a Maximum Sum Linked List out of two Sorted Linked Lists having some Common nodes
- Partitioning a linked list around a given value and If we don't care about making the elements of the list "stable"
- Length of longest palindrome list in a linked list using O(1) extra space
- Rotate the sub-list of a linked list from position M to N to the right by K places
- Self Organizing List | Set 1 (Introduction)