From 6a634c91145fab5b8ddb3af79c393607cd6272b6 Mon Sep 17 00:00:00 2001
From: Hunky Jimpjorps <thechairman@thechairman.info>
Date: Tue, 12 Dec 2023 06:14:55 -0500
Subject: day 12 complete, memoization utility added

---
 aoc2023/src/day9/solve.gleam | 1 +
 1 file changed, 1 insertion(+)

(limited to 'aoc2023/src/day9')

diff --git a/aoc2023/src/day9/solve.gleam b/aoc2023/src/day9/solve.gleam
index ce061ae..a2cc7ae 100644
--- a/aoc2023/src/day9/solve.gleam
+++ b/aoc2023/src/day9/solve.gleam
@@ -35,6 +35,7 @@ fn extrapolate(ns: List(Int)) {
   case is_constant(ns), ns {
     True, [n, ..] -> n
     False, [n, ..] -> n + extrapolate(take_derivative(ns))
+    _, _ -> panic as "list empty when it shouldn't be"
   }
 }
 
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