What are the basic operations of a deque in C++?

What are the basic operations of a deque in C++?

In C++, a deque (double-ended queue) supports operations like push_front, push_back, pop_front, pop_back, and accessing elements.

Can you explain how push_front works?

Sure! The push_front operation adds an element to the front of the deque, shifting existing elements to the right.

What happens if I try to pop from an empty deque?

If you attempt to pop from an empty deque, it will lead to undefined behavior. It's best to check if it's empty first.

Are there any performance considerations I should be aware of?

Yes, while deques provide efficient insertions and deletions at both ends, random access is slower compared to vectors.