std::set

At its heart, a std::set container is a collection of unique elements where each element follows a strict order. You can think of it as a club where each member is distinct and all have a particular rank. The container ensures that no two elements are the same, making it exceptionally useful in situations where duplicates are not desired.

Purpose and suitability

std::set is an associative container designed to store a sorted set of unique objects of type Key. Its strengths are as follows:

• Ensuring all elements are unique
• Automatically sorting elements as they are inserted

It is particularly suitable in the following scenarios:

• When duplicate elements are not desired
• When the ordering of elements matters
• When frequent lookups and insertions are anticipated

Ideal use cases

The following are some ideal use cases of std::set:

• Unique collection: If you need to maintain a collection of items where duplicates are not allowed...