What are the best practices for using vectors in C++11?

What are the best practices for using vectors in C++11?

In C++11, it's best to use vectors for dynamic arrays. Always prefer using emplace_back over push_back for efficiency.

Can you explain why emplace_back is more efficient?

emplace_back constructs the object in place, avoiding a copy or move operation, which can save time and resources.

Are there any specific scenarios where I should avoid using vectors?

Yes, if you need constant-time access and don't require dynamic resizing, consider using arrays or std::array instead.

What about memory management with vectors?

Vectors manage memory automatically, but be cautious with large data sets. Use reserve to minimize reallocations.