How can I improve map insert performance in C++11?

How can I improve map insert performance in C++11?

To improve map insert performance in C++11, consider using std::unordered_map instead of std::map for average constant time complexity.

What are the trade-offs of using unordered_map?

The trade-offs include higher memory usage and no order of elements, but faster average access and insertion times.

Are there any specific techniques to optimize std::map?

Yes, you can reserve space in advance if you know the number of elements, and use move semantics to reduce copies.

What about using custom comparators?

Using custom comparators can help optimize the insertion order and improve performance based on your specific use case.