unordered_map is an associated container that stores elements formed by the combination of a key value and a mapped value. The key value is used to uniquely identify the element and the mapped value is the content associated with the key. Both key and value can be of any type predefined or user-defined. In simple terms, an unordered_map is like a data structure of dictionary type that stores elements in itself. It contains successive pairs (key, value), which allows fast retrieval of an individual element based on its unique key.Internally unordered_map is implemented using Hash Table, the key provided to map is hashed into indices of a hash table which is why the performance of data structure depends on the hash function a lot but on average, the cost of search, insert, and delete from the hash table is O(1).

How are key-value pairs typically stored in a Map?

How are key-value pairs typically stored in a Map?*1 pointAs an array of integersAs a stack of charactersAs a linked list of structuresAs a queue of strings

What is a common application of the Abstract Data Type "Dictionary" or "Map"?a)Keeping track of elements in a LIFO manner.b)Representing a collection of elements with no duplicates.c)Storing elements in a sorted order.d)Associating keys with values for efficient retrieval.

. What is the purpose of the map() function in Python?AApply a function to each item in an iterableBCreate a mapping of keys and valuesCFilter elements in a listDFind the maximum value in a dictionary

What is the Map interface in Java, and how does it differ from other collection types? Can you provide an example of a situation where you would use a Map over a List or a Set?