What are the time complexities of arrays and linked lists?

What are the time complexities of arrays and linked lists?

Arrays have O(1) time complexity for access, while linked lists have O(n). Insertion and deletion are O(n) for arrays and O(1) for linked lists.

Why are linked lists better for insertions?

Linked lists allow for O(1) insertions since you can add elements without shifting others, unlike arrays.

Are there any downsides to using linked lists?

Yes, linked lists use more memory due to pointers and have slower access times compared to arrays.

When should I use arrays instead of linked lists?

Use arrays when you need fast access and have a fixed size, or when memory overhead is a concern.