What is std::deque in C++11?

Can you explain what std::deque is in C++11?

Sure! std::deque is a double-ended queue that allows fast insertion and deletion of elements from both ends.

What are the main advantages of using std::deque over std::vector?

The main advantages include efficient insertions and deletions at both ends, while std::vector is optimized for fast access and resizing.

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

Of course! Here's a simple example:

#include <iostream>
#include <deque>

int main() {
    std::deque<int> d;
    d.push_back(1);
    d.push_front(2);
    std::cout << d.front() << ' ' << d.back(); // Outputs: 2 1
    return 0;
}

Are there any limitations to using std::deque?

Yes, while std::deque is versatile, it may have slightly higher memory overhead compared to std::vector due to its internal structure.