how to remove all even integers from set in c++

Question

I\'m new to C++. I\'d like to know how experienced coders do this.

what I have:

set s;
s.insert(1);
s.insert(2);
s.insert(3);
s.insert(4);         


        

Answer 1

 for(set::iterator itr = s.begin(); itr != s.end(); ){
  if (!(*itr % 2))
      s.erase(itr++);

  else ++itr;
 }

effective STL by Scott Myers