C++ std::multiset vs std::set

What is the difference between std::set and std::multiset in C++?

The main difference is that std::set only allows unique elements, while std::multiset allows duplicate elements.

Can you give me an example of when to use std::multiset?

Sure! Use std::multiset when you need to store multiple occurrences of the same value, like counting votes.

Are there any performance differences between the two?

Yes, both have similar performance for insertion and deletion, but std::multiset may have slightly more overhead due to handling duplicates.

How do I iterate through a std::multiset?

You can use a range-based for loop or an iterator to go through the elements, just like with std::set.