Day 6: Trash Compactor
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
Uiua
Messy code that might be worth revisiting later, but array handling is right up Uiua’s street.
# AOC 2025 Day 6 D ← "123 328 51 64 \n 45 64 387 23 \n 6 98 215 314\n* + * + " # D ← &fras"AOC2025day06.txt" Parse ← ⊃↘↙¯1⊜∘⊸≠@\n P₁ ← ( ⊃⋅∘∘⍉⊓◇⋕⊢∩≡(⊜□⊸≠@\s)⊃↘↙¯1⊜∘⊸≠@\nD /+≡◇(⨬(/+|/×)≍"*")≡°□ ) P₂ ← ( ⍉ ⬚@\s⊜∘⊸(≡/↥∊"0123456789") ⊜∘⊸≠@\s⊃⋅∘∘≡₁(⬚∞⋕▽⊸≠@\s) /+≡◇(⨬(/+⍜⊏⋅0⊚⊸=∞|/×⍜⊏⋅1⊚⊸=∞)≍"*") ) ⊂ P₁ P₂ Parse D