How can I remove duplicates from a C++ set?

How can I remove duplicates from a C++ set?

In C++, a set automatically removes duplicates because it only stores unique elements. You don't need to do anything extra!

What if I have a vector with duplicates and want to convert it to a set?

You can use the std::set constructor that takes a range. For example: std::set<int> mySet(myVector.begin(), myVector.end()); This will remove duplicates.

Can I keep the order of elements when converting to a set?

No, sets do not maintain the order of elements. If you need to keep the order, consider using a std::vector with a custom function to remove duplicates.

Is there a way to remove duplicates from a vector while keeping the order?

Yes! You can use std::unique along with std::vector::erase to remove duplicates while maintaining the order.