How do I choose the right collection type in C#?

What factors should I consider when choosing a collection type in C#?

You should consider factors like performance, data access patterns, and whether you need ordered or unordered collections.

Can you explain the differences between List, Dictionary, and HashSet?

Sure! A List is ordered and allows duplicates, a Dictionary is a key-value pair collection, and a HashSet is unordered and does not allow duplicates.

When would I use a Dictionary over a List?

Use a Dictionary when you need fast lookups by key, while a List is better for ordered data and when you need to maintain duplicates.

Are there any performance considerations I should be aware of?

Yes, for example, accessing elements in a List is O(1), while searching in a List is O(n), but a Dictionary offers O(1) for both access and search.