Problem: T9 Spelling (https://open.kattis.com/problems/t9spelling)
I'm going through a very important data structure: Map (or HashMap in Java) which is going to be used a lot in future videos, so please make sure you know how to use it! For more information, you can look at the Javadoc for HashMap: https://download.java.net/java/early_access/jdk17/docs/api/java.base/java/util/HashMap.html
Video Sections:
0:00 - Problem description
2:44 - What is a mapping?
5:25 - Maps in Java (HashMap)
8:36 - Using HashMap to output the code
13:41 - Adding spaces to the output
20:16 - Final words
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.
