advent-of-code VS advent-of-code

https://github.com/tcsullivan/advent-of-code/tree/master/day7.

Hey, Forth may have began development in the late 60s, but that hardly makes the language obsolete! It's super versatile yet terribly undervalued, and is absolutely worth checking out if you're not familiar with it. My goal is (and has been) to complete every day in Forth, see my repo for my solutions.

Source code

Annotated code and Visualization

Annotated code and video of it running. Running my actual input took ~7 minutes.

Annotated code for both parts

[LANGUAGE: Python 3] 153/75 Raw solution

One could instead count |F7 (that's what I do in my refactored solution), but counting all the bends would miscount the vertical segments (FJ would end up canceling itself out).

That sounds like what I suggested here, actually. I don't have anything in my library with quite the right API yet, but I already have most of what you describe coded out. (It looks like I whipped it up for 2017 Day 13.)

[LANGUAGE: Python 3] Embarrassing/Embarrassing Ugly raw solution code

[LANGUAGE: Python 3] 66/101 Raw solution code

Python 3 21/12

It doesn't, but you can use a separate list, wrapper classes, and deque.index to find where the values live. I may be biased but I think that my solution (ultimately using deque) isn't as complex as a custom linked list.

Part 2 assumes you did part 1 properly. I did not! I'm pretty sure that the intended solution is to do a sort of reverse search (have a target number of geodes and work backwards to see if that's possible to achieve) but I was just not having success coming up with a way to do that. It's probably going to be blindingly obvious once I figure it out, but that might be an exercise for tomorrow.

Python 3 9/15!!!

Python 3 44/45