What are the features of std::unordered_map in C++11?
An example of an AI chatbot conversation about std::unordered_map features in C++11.
What are the features of std::unordered_map in C++11?
std::unordered_map is a hash table-based container that stores key-value pairs. It offers average constant time complexity for lookups, insertions, and deletions.
How does it differ from std::map?
The main difference is that std::map is ordered and implemented as a balanced tree, while std::unordered_map is unordered and uses a hash table.
Can I use custom hash functions with std::unordered_map?
Yes, you can provide a custom hash function and a custom equality function when declaring the unordered_map.
What are some common use cases for std::unordered_map?
Common use cases include caching, counting occurrences of items, and implementing associative arrays.
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