What is the performance of std::deque in C++?

What is the performance of std::deque in C++?

The performance of std::deque is generally good for both insertion and deletion operations at both ends, with average time complexity of O(1). However, random access is O(n) compared to O(1) for std::vector.

How does std::deque compare to std::vector in terms of memory usage?

std::deque typically uses more memory than std::vector due to its segmented storage structure, which allows for efficient growth but incurs overhead.

Are there any specific use cases where std::deque is preferred over std::vector?

Yes, std::deque is preferred when you need efficient insertions and deletions at both ends, such as in a double-ended queue scenario.

What are the trade-offs of using std::deque?

The trade-offs include higher memory overhead and potentially slower random access compared to std::vector, but better performance for certain operations.