When should I use arrays instead of linked lists?

When should I use arrays instead of linked lists?

It depends on your use case. Arrays are great for fast access and fixed-size data, while linked lists are better for dynamic sizes and frequent insertions.

Can you explain the performance differences between them?

Sure! Arrays provide O(1) time complexity for access, but O(n) for insertions and deletions. Linked lists offer O(n) access time but O(1) for insertions and deletions.

What about memory usage?

Arrays have a fixed size, which can lead to wasted space if not fully utilized. Linked lists use more memory per element due to pointers, but they can grow dynamically.

Are there any scenarios where one is clearly better than the other?

Yes! Use arrays when you need fast access and know the size in advance. Use linked lists when you need to frequently add or remove elements.