From ba719f8f5e8a1bb55a9f4fc99cd0e853f7ec62b8 Mon Sep 17 00:00:00 2001 From: sterni Date: Sun, 18 Dec 2022 16:56:32 +0100 Subject: feat(sterni/aoc/2022): day18 BQN solution Change-Id: I1504cd5e443ff0b28c2d97ae357e5d92c88bba4d Reviewed-on: https://cl.tvl.fyi/c/depot/+/7601 Reviewed-by: sterni Tested-by: BuildkiteCI Autosubmit: sterni --- users/sterni/exercises/aoc/2022/18/18.bqn | 14 ++++++++++++++ 1 file changed, 14 insertions(+) create mode 100644 users/sterni/exercises/aoc/2022/18/18.bqn (limited to 'users/sterni/exercises/aoc/2022') diff --git a/users/sterni/exercises/aoc/2022/18/18.bqn b/users/sterni/exercises/aoc/2022/18/18.bqn new file mode 100644 index 000000000000..76ec569fed41 --- /dev/null +++ b/users/sterni/exercises/aoc/2022/18/18.bqn @@ -0,0 +1,14 @@ +lib ← •Import "../../lib.bqn" + +i ← (lib.ReadDec¨(<',')⊸lib.SplitOn)¨ •FLines "input" +dim ← 1+⌈´i +cubes ← i∊˜↕dim + +views ← ⟨0‿1‿2, 1‿2‿0, 2‿0‿1⟩ +Exposed ← {(6×+´⥊𝕩)-2×+´views{+´⥊(∧˝˘)2↕𝕨⍉𝕩}¨<𝕩} +Interior ← {(¬𝕩)∧´views{((lib.Xor`∘((∊∧⊢)∨»∘(∊⌾⌽∧⊢)))⎉1)⌾(𝕨⊸⍉)𝕩}¨<𝕩} +Displace ← {⌈´(⥊⊢‿⌽⋈⌜views){F‿a 𝕊 𝕩:((-∘¬∘(»((0⊸=⊣)∧>)⊢)⌈⊢)⎉1)⌾(F a⊸⍉)𝕩}¨<𝕩} +Exterior ← (⊢-○Exposed ¯1⊸=∘(Displace lib._fix)∘(-∘Interior+⊢)) + +•Out "day18.1: "∾•Fmt Exposed cubes +•Out "day18.2: "∾•Fmt Exterior cubes -- cgit 1.4.1