Java Streams

The puzzle today, was really just creating a map of lists, cleaning up the map to be to a single item in a list, then using that to do some further determinations of counts of things

The days are getting more difficult, and today's puzzle [https://adventofcode.com/2020/day/19] was no exception

My biggest problem with part two was not realizing that whereas in part one, we were changing the value being stored, but in part two, we're storing the pre-defined VALUE to multiple address locations based on the criteria.

I think the most frustrating part was that the example input data was processing and counting properly, but I was never able to get my input to work properly

I also continually feel like at least for Advent of Code, I spend more time to focus on better programming practices rather than speed

I've yet to find a way to use java streams "properly" when having to track external state things, and especially in scenarios where there's asynchronous movements afoot

So, this morning, when Sudo [http://sudothelab.com] woke me up at 1:30 AM and I decided to use

I made no logic changes and submitted the answer again, and it seemed to work this time, so for whatever reason, I probably just fat-fingered the value, which I guess happens.

once you sit back and think about it, you come up with the REAL better way to approach it, iterative development is really interesting, but you have to understand your problem and have time to actually iterate on your solution to really be successful with it.