How does C++ handle vector performance?

How does C++ handle vector performance?

C++ vectors are dynamic arrays that provide efficient access and modification. Their performance can vary based on operations like insertion and deletion.

What factors affect the performance of vectors in C++?

Factors include memory allocation, resizing behavior, and the complexity of operations like push_back and insert.

Are there any best practices for optimizing vector performance?

Yes, use reserve() to allocate memory in advance, avoid frequent resizing, and prefer emplace_back for constructing elements in place.

How do vectors compare to arrays in terms of performance?

Vectors offer more flexibility and safety than arrays, but arrays can be faster for fixed-size data due to lower overhead.