C++ Deque vs List: Which One to Use?

What are the main differences between a deque and a list in C++?

A deque (double-ended queue) allows insertion and deletion at both ends, while a list allows for efficient insertion and deletion at any position.

When should I use a deque instead of a list?

Use a deque when you need fast access to both ends of the container. It's ideal for scenarios like implementing queues.

Are there any performance differences between them?

Yes, deques generally have better performance for adding/removing elements at both ends, while lists are better for frequent insertions/deletions in the middle.

Can you give an example of when to use each?

Use a deque for a task scheduler where you need to add/remove tasks from both ends, and a list for maintaining a collection of items where order matters.