From: Ben Harris <bjh21@bjh21.me.uk>
Date: Mon, 13 May 2024 20:03:39 +0000 (+0100)
Subject: 13b done
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~bjharris/git?a=commitdiff_plain;h=282d6cdd8ff270d7105930d6129349879ae0be8d;p=aoc-2022.git

13b done
---

diff --git a/13/13b.bqn b/13/13b.bqn
new file mode 100644
index 0000000..9fa7daa
--- /dev/null
+++ b/13/13b.bqn
@@ -0,0 +1,24 @@
+Split←{
+  blocknums ← +`𝕨
+  # Set entries in blocknums to -1 when they correspond with delimiters.
+  blocknums ↩ (¯1¨)⌾(𝕨⊸/) blocknums
+  blocknums⊔𝕩
+}
+
+Prep←{
+  ParseVal¨(""⊸≢¨𝕩)/𝕩
+}
+
+ParseList←{𝕊in:
+  in↩1↓¯1↓in
+  depth←+`('['=in)-(']'=in)
+  ParseVal¨ ((','=in)∧(depth=0)) Split in
+}
+
+ParseVal←{'['=⊑𝕩}◶⟨•ParseFloat,ParseList⟩
+
+Main←{
+  ×´(⟨⟨⟨2⟩⟩,⟨⟨6⟩⟩⟩∊˜∧𝕩∾⟨⟨⟨2⟩⟩,⟨⟨6⟩⟩⟩)/1+↕2+≠𝕩
+}
+
+•Show Main Prep •file.Lines ⊑•args