When should I use std::vector in C++?

What is std::vector in C++?

std::vector is a dynamic array that can resize itself automatically when elements are added or removed.

When should I use std::vector instead of a regular array?

Use std::vector when you need a resizable array, as it provides more flexibility and built-in functions.

Are there any performance considerations with std::vector?

Yes, std::vector can have overhead due to dynamic memory allocation, but it generally offers better performance for dynamic sizes.

Can std::vector hold different data types?

No, std::vector can only hold elements of the same type. For different types, consider using std::variant or std::any.