What are the different types of containers in C++ standard library?

What are the different types of containers in the C++ standard library?

The C++ standard library provides several types of containers, including vectors, lists, deques, sets, maps, and arrays. Each has its own use cases and performance characteristics.

Can you explain the differences between a vector and a list?

Sure! A vector is a dynamic array that allows random access and is efficient for adding/removing elements at the end. A list, on the other hand, is a doubly linked list that allows efficient insertions and deletions from anywhere but does not support random access.

When should I use a map instead of a set?

Use a map when you need to associate keys with values, allowing for fast lookups by key. Use a set when you only need to store unique elements without any associated values.

Are there any performance considerations I should be aware of?

Yes, performance can vary based on the container type and operations. For example, vectors are generally faster for access and iteration, while lists are better for frequent insertions and deletions.