Fail to insert the element of the set to the vector in c++

Question

Given a set of integers:

set<int> setA = {1,2,3,4,5};

Now I want to insert the integer to a vector of integers under a certain condition:

vector<int> vectorB;
for (set<int>::iterator it = setA.begin(); it != setB.end(); it++){

  if (*it % 2 == 0){
  }else{
    vectorB.insert((*it));
    count += 1;
  }
}

But I got an error:

error: no matching function for call to 'std::vector<int>::insert(const int&)'

Why?

Answer 1

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.