Day 10: Factory

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[-] mykl@lemmy.world 5 points 1 month ago* (last edited 1 month ago)

Uiua

(added language tag)

Quiet here, isn't it?

Here's part1 to be going on with.

# AOC 2025 Day 10 - Wiring maze
D ← "[.##.] (3) (1,3) (2) (2,3) (0,2) (0,1) {3,5,4,7}\n[...#.] (0,2,3,4) (2,3) (0,4) (0,1,2) (1,2,3,4) {7,5,12,7,2}\n[.###.#] (0,1,2,3,4) (0,3,4) (0,1,2,4,5) (1,2) {10,11,11,5,10,5}"
# D      ← &fras"randomAOC/AOC2025day10.txt"
Digits ← ⊜⋕⊸∊+@0⇡10
Parse  ← ⊜(□⊜□⊸≠@\s)⊸≠@\n
Part₁ ← (
  ≡◇(
    =@#↘₁↘₋₁°□°⊂↘¯1  # target
    ⊙⬚0≡◇(°⊚Digits)  # presses
    ⧻⊢path(≡⌞≠|=0/+) # find shortest path
  )
  /+-1
)
Part₁ Parse D

I've given up on Part 2. I knew what I needed to do but didn't have the understanding of how to use the matrix elimination method to get beyond the first stages. But I did find this:

How to solve part 2 without libraries

This is a solver written totally from scratch in Dart, so easily readable unlike some other languages :-): [https://github.com/ayoubzulfiqar/advent-of-code/blob/main/2025/Dart/Day10/part_2.dart](GitHub link)

There's lots of parallelism (that's over the top for this problem), but the core solveSystem method is very clearly written, just long...

[-] CameronDev@programming.dev 3 points 1 month ago

Everyone has PTSD from yesterday.

[-] mykl@lemmy.world 6 points 1 month ago

I'm getting PTSD from today now.

[-] biawa@slrpnk.net 1 points 1 month ago

what language/symbols are these in?

[-] VegOwOtenks@lemmy.world 2 points 1 month ago

that's uiua

this post was submitted on 10 Dec 2025

13 points (100.0% liked)

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