I have most of it in place, but I guess it's 4&5 I need to improve. I feel like my problem, when comparing to the video posted of today's winner, is that I'm "too safe". I should gamble a bit more, read only parts of it at the chance of misunderstanding, and go with my first thought of implementation even though it may not work. Because the moment I start to consider things the others are already done, heh.

And I guess I could do better on 2, but on this day I only needed 1 run. I use Kotlin, and guess I lose a second or two on it compiling before running. I see today's winner just did everything in browser console as a repl. So that's probably a good way to minimize the loop. Pretty annoying for the later problems, though.