C++ Maps are sorted associative containers that contain unique key/value pairs. For example, you could create a map that associates a string with an integer, and then use that map to associate the number of days in each month with the name of each month.

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Map constructors & destructors	default methods to allocate, copy, and deallocate maps
Map operators	assign, compare, and access elements of a map
begin	returns an iterator to the beginning of the map
clear	removes all elements from the map
count	returns the number of elements matching a certain key
empty	true if the map has no elements
end	returns an iterator just past the last element of a map
equal_range	returns iterators to the first and just past the last elements matching a specific key
erase	removes elements from a map
find	returns an iterator to specific elements
insert	insert items into a map
key_comp	returns the function that compares keys
lower_bound	returns an iterator to the first element greater than or equal to a certain value
max_size	returns the maximum number of elements that the map can hold
rbegin	returns a reverse_iterator to the end of the map
rend	returns a reverse_iterator to the beginning of the map
size	returns the number of items in the map
swap	swap the contents of this map with another
upper_bound	returns an iterator to the first element greater than a certain value
value_comp	returns the function that compares values