How do I use std::deque in C++?

How do I use std::deque in C++?

The std::deque is a double-ended queue that allows fast insertion and deletion at both ends. You can include it by adding #include <deque>.

What are the main functions I can use with std::deque?

Some main functions include push_back(), push_front(), pop_back(), pop_front(), and at(). You can also access elements using the subscript operator.

Can you give me an example of how to initialize a std::deque?

Sure! You can initialize a std::deque like this: std::deque<int> myDeque; or with initial values: std::deque<int> myDeque = {1, 2, 3};.

Is std::deque better than std::vector?

It depends on your use case. std::deque is better for frequent insertions and deletions at both ends, while std::vector is more efficient for random access and memory usage.