How do C++ std::deque iterators perform compared to other containers?

How do C++ std::deque iterators perform compared to std::vector?

C++ std::deque iterators generally provide better performance for insertions and deletions at both ends compared to std::vector, which is optimized for random access.

What about the memory usage of std::deque versus std::vector?

std::deque typically uses more memory than std::vector due to its non-contiguous storage and overhead for managing multiple chunks of memory.

Are there any scenarios where std::vector would be preferred over std::deque?

Yes, std::vector is preferred when you need fast random access and don't require frequent insertions or deletions at the ends.

Can you explain how iterators work in std::deque?

Iterators in std::deque allow you to traverse elements just like in other STL containers, but they may not be as efficient for random access due to the underlying structure.