Associative Containers std::multimap in C++

Anatomy of std::multimap

std::multimap is an associative container in C++ that allows the storage of key-value pairs, where a key can map to multiple values. Unlike std::map, which enforces keys, std::multimap accommodates situations where a key may be associated with several values.

Declaration and Initialization

To use std::multimap, include the <map> header and declare it with the desired key and value types:

#include <map>

std::multimap<int, std::string> myMultimap;

Initialization can be done using the insert function or initializer lists.