[Solved] Fail to insert the element of the set to the vector in c++

Question

As others have mentioned in the comments, you should not be using insert in this case, you should be using push_back

vectorB.push_back(*it);

You would typically use insert if there is a specific position that you want to insert the new element. If you are not interested in adding the element to a specific position, then you can use push_back to (as the name suggests) add the element to the end of the vector.

Accepted Answer

As others have mentioned in the comments, you should not be using insert in this case, you should be using push_back

vectorB.push_back(*it);

You would typically use insert if there is a specific position that you want to insert the new element. If you are not interested in adding the element to a specific position, then you can use push_back to (as the name suggests) add the element to the end of the vector.