How do I use a deque in C++?

How do I use a deque in C++?

A deque (double-ended queue) in C++ allows insertion and deletion from both ends. You can include it using #include <deque>.

Can you show me some basic operations on a deque?

Sure! Here are some basic operations:

1. push_front(value) - Adds an element to the front.
2. push_back(value) - Adds an element to the back.
3. pop_front() - Removes the front element.
4. pop_back() - Removes the back element.

How do I access elements in a deque?

You can access elements using the at(index) method or the subscript operator []. For example, myDeque.at(0) or myDeque[0].

Are there any performance considerations I should be aware of?

Yes, deques provide constant time complexity for insertions and deletions at both ends, but accessing elements is linear in terms of distance from the ends.