How do I use the std::set in C++?

How do I use the std::set in C++?

The std::set is a part of the C++ Standard Library that stores unique elements in a specific order. You can include it by adding #include <set>.

What are the main features of std::set?

The main features include automatic sorting, uniqueness of elements, and efficient search operations.

Can you show me a simple example of how to declare and use a std::set?

Sure! Here's a simple example:

#include <iostream>
#include <set>

int main() {
    std::set<int> mySet;
    mySet.insert(5);
    mySet.insert(3);
    mySet.insert(8);

    for (int num : mySet) {
        std::cout << num << " ";
    }
    return 0;
}

What happens if I try to insert a duplicate value?

If you try to insert a duplicate value, std::set will simply ignore it, ensuring all elements remain unique.