How to use maps in C++?

In C++, you can utilize std::map to establish an associative container for storing a collection of key-value pairs. The std::map container sorts the keys in order and each key can only appear once.

Here are some common operations with std::map:

1. Use the map library.
2. standard template library map
3. A map named mapName with keys of type Key and values of type Value.
4. Assign the value to the key in the map.
5. The value is inserted into the map with a corresponding key.
6. Retrieve the value from the map using the specified key.
7. if the key exists in the mapName data structure.
8. If the key is found in the mapName.
9. Delete the key from the map.
10. Iterate through the map named mapName using a for loop, extracting the key and value pairs to perform operations on.
11. a standard template library data structure known as a map
12. the number of elements in the mapName dataset
13. a standard template library container in C++ that stores elements in a key-value pair fashion.
14. Remove all items from the map called mapName.

Please note that the key type of std::map must support the < comparison operator, or you can provide a customized comparison function object to create a std::map object.