From 2bb7e9d5cd49f9335ccdb26a990bc9904447d064 Mon Sep 17 00:00:00 2001
From: rhiannon morris <rhi@rhiannon.website>
Date: Sat, 9 Dec 2023 20:28:58 +0100
Subject: [PATCH] day9

---
 day9.bqn | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 day9.bqn

diff --git a/day9.bqn b/day9.bqn
new file mode 100644
index 0000000..3adb1d4
--- /dev/null
+++ b/day9.bqn
@@ -0,0 +1,5 @@
+Next ← {∧´𝕩=0 ? 0 ; (¯1⊸⊑ + 𝕊∘(¯1⊸↓)∘(«-⊢)) 𝕩}
+Read ← •BQN {' ':'‿';'-':'¯';𝕩}¨
+
+Part1 ⇐ +´ Next∘Read¨∘•FLines
+Part2 ⇐ +´ Next∘⌽∘Read¨∘•FLines