multimap::count() in C++ STL

The multimap::count is a built-in function in C++ STL which returns the number of times a key is present in the multimap container. Syntax:

multimap_name.count(key)

Parameters: The function accepts one mandatory parameter key which specifies the key whose count in multimap container is to be returned. Return Value: The function returns the number of times a key is present in the multimap container.