Problems: I've Been Everywhere, Man (https://open.kattis.com/problems/everywhere) and
ICPC Awards (https://open.kattis.com/problems/icpcawards)
I introduce Java HashSet and show how we can use it to solve a couple of Kattis problems. You can find out more about HashSet from https://docs.oracle.com/en/java/javase/12/docs/api/java.base/java/util/HashSet.html.
Video Sections:
0:00 - Problem description (I've Been Everywhere, Man)
0:58 - First solution
5:49 - Java HashSet
7:42 - Solution using HashSet
11:30 - Problem description (ICPC Awards)
14:10 - Solution using HashSet
Please note that all views and opinions expressed in this video are my own and does not reflect that of Kattis or any other person/organisation mentioned in the video.
