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Traversing in Doubly Linked List is faster then Singly Linked List?
Wiki User
∙ 14y ago
Traversing a doubly linked list is generally faster than traversing a singly linked list, but the speedup depends on how you do the traversal:
- Traversing from first to last node: No difference.
- Random access: Doubly linked list is faster, the difference is a fixed factor. (Like twice as fast. Which makes it still very slow for random access compared to arrays.)
- Reverse order: Doubly linked list is just as fast traversing "backwards" as "forwards", while a singly linked list traversing in reverse order needs to traverse the entire list once for every element in the list - it is a LOT slower. (Time complexity O(n) for doubly linked list, O(n*n) for singly linked, if you are familiar with the notation.)
Wiki User
∙ 14y ago
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