How can I optimize the performance of std::vector in C++?

How can I optimize the performance of std::vector in C++?

To optimize std::vector performance, consider using reserve() to allocate memory upfront, minimizing reallocations.

What about using emplace_back instead of push_back?

Yes, emplace_back can be more efficient as it constructs the object in place, reducing copies.

Are there any specific scenarios where std::vector might not be the best choice?

Absolutely! If you need frequent insertions and deletions, std::list or std::deque might be better alternatives.

How does the memory allocation strategy of std::vector work?

std::vector typically doubles its capacity when it runs out of space, which helps amortize the cost of reallocations.