#includeIn this example, we create a multimap called `name_age`, with the key being an integer representing the age and the value being a string representing the name. We then insert three key-value pairs into the multimap, with two of them sharing the same key. Finally, we iterate through the multimap using a range-based for loop and print out the key-value pairs. This code example demonstrates the usage of multimap for storing and accessing data in a sorted manner. Package Library: C++ Standard Library.#include