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diff --git a/2022/commentary.md b/2022/commentary.md index f9e3649..00c9f49 100644 --- a/2022/commentary.md +++ b/2022/commentary.md @@ -28,8 +28,8 @@ So, here's my day-by-day opinion on how this year went for me. * **[Day 20](https://github.com/hunkyjimpjorps/AdventOfCode/blob/main/2022/day-20/day-20.rkt)**. *Repeatedly shift elements around in a circular array.* Singly-linked lists are terrible for repeated arbitrary access, but I don't care. I figured out an algorithm that worked and I was happy enough with that to accept it and move on. After the previous streak of problems, I was just happy to figure out day 2 on my own. * **[Day 21](https://github.com/hunkyjimpjorps/AdventOfCode/blob/main/2022/day-21/day-21.rkt)**. *Figure out what to shout in the monkeys' math game.* I have a feeling the intended solution for Part 2 of this one was to build the expression tree and backtrack through the operations to calculate the unknown value. However, I just blindly started evaluating the result for various guesses and discovered through trial and error that the relationship between the guess and the result is linear, so all you need for part 2 is two guesses, their corresponding results, and some algebra. It's fun to accidentally discover simple solutions to complex-looking problems. * **Day 22** (no solution). *Something involving walking around on a map.* I skipped this one because of the flu. C'est la vie. -* **[Day 23](https://github.com/hunkyjimpjorps/AdventOfCode/blob/main/2022/day-23/day-23.rkt)** *Cellular elfomata.* Another AoC staple, though later than usual. I think the story got in the way of the problem description a little bit here, but once I talked through the rules with someone else it was a straight shot to the solution. +* **[Day 23](https://github.com/hunkyjimpjorps/AdventOfCode/blob/main/2022/day-23/day-23.rkt)**. *Cellular elfomata.* Another AoC staple, though later than usual. I think the story got in the way of the problem description a little bit here, but once I talked through the rules with someone else it was a straight shot to the solution. * **Day 24** (no solution). *Walk through a blizzard.* I had to skip this one because of holiday travel (ironically made more difficult by a blizzard) and family obligations. It looks interesting, though, so I'm hoping to have some time to come back to it before January. -* **[Day 25](https://github.com/hunkyjimpjorps/AdventOfCode/blob/main/2022/day-25/day-25.rkt)** *Figure out balanced penternary.* The final AoC problem is always a clever little math brain teaser with one part, and this one was fun to puzzle out with pencil and paper. +* **[Day 25](https://github.com/hunkyjimpjorps/AdventOfCode/blob/main/2022/day-25/day-25.rkt)**. *Figure out balanced penternary.* The final AoC problem is always a clever little math brain teaser with one part, and this one was fun to puzzle out with pencil and paper. I think Days 16 and 19 could've used a second pass to narrow the possible solution space, or at least make the best heuristic a little more straightforward to reason out, but on the balance, I enjoyed myself this year, and I'm generally happy with my solutions and implementations.
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