Basics of Unordered multiset in C++

An unordered multiset is an unordered set (a set in which a key can be stored in any random order) that allows different elements to have equivalent values (allows duplicate items).

How are elements of an Unordered multiset stored internally?
1. The elements of the Unordered multiset are organized into buckets.
2. It uses hashing to insert these elements into buckets.
3. This reduces the access time of an individual element because with the help of hash values we can directly access the buck...