How do I choose the right data structure in C++?

How do I choose the right data structure in C++?

Choosing the right data structure depends on your specific needs. Are you looking for speed, memory efficiency, or ease of use?

I need something that allows fast access and modification.

In that case, consider using a vector or a map. Vectors provide fast access by index, while maps allow for quick key-value pair modifications.

What about when I need to maintain order?

If maintaining order is important, a list or a deque might be suitable. Lists allow for efficient insertions and deletions, while deques provide fast access from both ends.

Can you give me an example of when to use a set?

Certainly! Use a set when you need to store unique elements and perform operations like union, intersection, or difference efficiently.