Complete Modern C++ - std::map and std::multimap

The video tutorial explains the use of maps and multimaps in C++. It covers how maps are implemented as binary trees and are useful for sorting based on keys. The tutorial details how to use maps, including initializing them, inserting elements, and accessing elements using iterators. It also discusses modifying values, searching, and erasing elements. The video highlights the limitations of using the subscript operator for searching and explains how multimaps can handle duplicate keys. Finally, it introduces the equal range function for searching equivalent keys in multimaps.

What is the significance of the subscript operator when accessing map elements?

What happens if you try to insert a duplicate key into a map?

How does a multi map differ from a regular map?