What is a multiset in C++?

Can you explain what a multiset is in C++?

Sure! A multiset in C++ is a type of associative container that allows multiple occurrences of the same element.

How does a multiset differ from a set?

The main difference is that a set only allows unique elements, while a multiset can store duplicate values.

Can you show me a simple example of using a multiset?

Of course! Here's a quick example:

#include <iostream>
#include <set>

int main() {
    std::multiset<int> ms;
    ms.insert(1);
    ms.insert(2);
    ms.insert(2);
    ms.insert(3);
    for (int x : ms) {
        std::cout << x << " ";
    }
    return 0;
}

This will output: 1 2 2 3.

What are some common use cases for multiset?

Common use cases include counting occurrences of elements, managing frequency distributions, and handling duplicate data.