C++ STL: Array vs Vector

What are the main differences between C++ STL arrays and vectors?

The main differences include size flexibility, memory management, and performance. Arrays have a fixed size, while vectors can dynamically resize.

When should I use an array instead of a vector?

Use arrays when you know the size at compile time and need better performance. Vectors are better for dynamic sizes.

Are there any performance implications when using vectors?

Yes, vectors may have overhead due to dynamic resizing and memory allocation, but they offer better usability and safety.

Can you give an example of when to prefer vectors?

Prefer vectors when you need to frequently add or remove elements, as they handle memory management automatically.