C++: std::vectors vs. Arrays

What are the main differences between std::vector and arrays in C++?

The main differences include dynamic sizing, memory management, and ease of use. std::vector can resize automatically, while arrays have a fixed size.

Can you explain how memory management works for both?

Sure! Arrays are allocated on the stack and have a fixed size, while std::vectors are allocated on the heap and can grow or shrink as needed.

Which one is more efficient in terms of performance?

Arrays can be slightly more efficient due to their fixed size and stack allocation, but std::vectors offer more flexibility and safety.

When should I use std::vector instead of an array?

Use std::vector when you need dynamic sizing, easier memory management, or when working with STL algorithms.