The C++ map container is a part of the Standard Template Library (STL) and is defined in the map header file. Map is an associative container that stores a set of key-value pairs or elements. The keys are unique, and no two keys can be the same. The values associated with each key can, however, be the same.
The empty() method in the C++ map container is used to check whether the map is empty or not. It returns a Boolean value of true if the map is empty, otherwise, it returns a false value.
Example:
#include #include
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