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 in C++ 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 vectors or hash maps. Vectors provide fast access and modification, while hash maps offer average constant time complexity for lookups.

What about when I need to maintain order?

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

Can you give me an example of using a vector?

Sure! Here's a simple example: std::vector<int> numbers = {1, 2, 3}; numbers.push_back(4); This adds 4 to the end of the vector.