Day 11: Reactor
Megathread guidelines
- Keep top level comments as only solutions, if you want to say something other than a solution put it in a new post. (replies to comments can be whatever)
- You can send code in code blocks by using three backticks, the code, and then three backticks or use something such as https://topaz.github.io/paste/ if you prefer sending it through a URL
FAQ
- What is this?: Here is a post with a large amount of details: https://programming.dev/post/6637268
- Where do I participate?: https://adventofcode.com/
- Is there a leaderboard for the community?: We have a programming.dev leaderboard with the info on how to join in this post: https://programming.dev/post/6631465
I also broke up the pathing, mine has zero paths from DAC to FFT. If I join DAC directly FFT, i get a stackoverflow, so maybe its intentional.
If you can explain why it works, not calculating half the paths isn’t a hack—it’s an optimization. ;)
I think the hack was just skipping the entire second set of paths, but yeah, splitting was an nice optimisation. Might not scale as well if that path had to hit multiple intermediate nodes though.
Yes, it felt a little more like I was solving the puzzle-setter rather than the puzzle today.