What are advanced containers in C++ STL?

What are advanced containers in C++ STL?

Advanced containers in C++ STL include structures like std::map, std::set, std::unordered_map, and std::unordered_set. They provide efficient ways to store and manage data.

Can you explain how std::map works?

Sure! std::map is an associative container that stores elements in key-value pairs. It automatically sorts the elements based on the keys and allows for fast retrieval.

What is the difference between std::set and std::unordered_set?

std::set stores unique elements in a sorted order, while std::unordered_set stores unique elements in an unsorted manner, providing faster average time complexity for lookups.

When should I use std::vector instead of std::list?

Use std::vector when you need fast random access and are primarily adding/removing elements at the end. Use std::list for frequent insertions and deletions from anywhere in the container.