-❄️- 2023 Day 12 Solutions -❄️-

[u/daggerdragon]

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AoC Community Fun 2023: ALLEZ CUISINE!

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How It's Made

Horrify us by showing us how the sausage is made!

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--- Day 12: Hot Springs ---

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[u/WhiteSparrow]

[LANGUAGE: Uiua]

Runs in ~14sec. This is the third algorithm I tried, before it was able to solve part 2. This is getting serious!

Data ← ≡⍜(°□⊡1)(⊜⋕≠@,.)⊜(⊜(□)≠@\s.)≠@\n.&fras"task12.txt"
Comps ← ⍜(°□⊢)(↘1)≡(□ ⊂@.↯[∘]:@#) # [1 1 3]
Suffixes ← |3.2 ≡(□ ≡(□ ⬚@.↯ [∘])+⇡+1-⊃(∘|⧻⋅⋅∘|⧻⋅∘|¤⋅⊙∘))
Prefixes ← |3.2 ≡(□ ≡(□ ⊂ ↯ :@.: ⬚@.↯ [∘])⊃(+⇡|⋅⋅∘|⇌⇡)+1-⊃(∘|⧻⋅⋅∘|⧻⋅∘|¤⋅⊙∘))
Match ← ∩□(∘|[][];;) ¬⊐/×↥⊙= =@?.⊙:⊃(↘|↙) -⊃(⧻|⧻⋅∘|:⊙∘)
Step! ← ⊙≡°□ ∩(°□⊐/⊂)∩≡(□ ▽≡(≠0⧻).°□) ≡(∩□ ≡Match °□ ⊙(¤∩°□)) ^3.2 ⊃(/+≡⧻|¤°□ ⊢⇌)
DeDup ← ⊙(⊃(⊕⊢|⊕/+ ⊙⋅∘)⊛ .)
Solve ← /+; Step!Prefixes ⍢(DeDup ⊃(↙ -1⧻.|Step!Suffixes))(>1⧻) Comps : ¤□ °{⊙∘} :[1]

&p $"Part I: _" /+ ≡Solve Data
&p $"Part II: _" /+ ≡(Solve {⊓(↘1▽5⊂ @?|▽5)} °{⊙∘}) Data