What is the best data structure for deletion operations?

What is the best data structure for deletion operations?

The best data structure for deletion operations often depends on the specific use case. For example, linked lists allow for efficient deletions, while hash tables provide average-case constant time complexity.

Can you explain why linked lists are good for deletions?

Sure! In a linked list, each element points to the next. To delete a node, you only need to update the pointer of the previous node, which is O(1) time complexity, unlike arrays where you may need to shift elements.

What about binary search trees?

Binary search trees (BSTs) also allow for efficient deletions. You can remove a node in O(log n) time on average, but it can degrade to O(n) if the tree becomes unbalanced.

Are there any data structures that combine both fast access and deletion?

Yes, self-balancing trees like AVL trees or Red-Black trees provide both fast access and efficient deletion, maintaining O(log n) time complexity for both operations.