Remove Duplicate Entries in a C++ Vector

Question

Just want to remove duplicates. Pool is vector> but I seem to miss some elements at the start of the vector somehow. Can anyone verify

Answer 1

This is a very common issue.

Because after you erase an element the position j pointed will skip one element due to the j++ on the for loop. the easiest solution to solve the problem based on your code is to add j-- after generation.erase(iter):

  generation.erase(iter);
  j--;