From ce7064347674b1f3d6f68c5ffb1795b367357ad4 Mon Sep 17 00:00:00 2001
From: George Thomas <georgefsthomas@gmail.com>
Date: Tue, 9 Dec 2025 10:27:50 +0000
Subject: [PATCH] Initialise day 9

---
 haskell/Main.hs         |  2 ++
 haskell/Puzzles/Day9.hs | 15 +++++++++++++++
 haskell/aoc.cabal       |  1 +
 inputs/examples/9       |  8 ++++++++
 inputs/private          |  2 +-
 outputs/examples/9/1    |  1 +
 6 files changed, 28 insertions(+), 1 deletion(-)
 create mode 100644 haskell/Puzzles/Day9.hs
 create mode 100644 inputs/examples/9
 create mode 100644 outputs/examples/9/1

diff --git a/haskell/Main.hs b/haskell/Main.hs
index ad45d93..39af2f4 100644
--- a/haskell/Main.hs
+++ b/haskell/Main.hs
@@ -12,6 +12,7 @@ import Puzzles.Day5 qualified as Day5
 import Puzzles.Day6 qualified as Day6
 import Puzzles.Day7 qualified as Day7
 import Puzzles.Day8 qualified as Day8
+import Puzzles.Day9 qualified as Day9
 import Test.Tasty.Ingredients.ConsoleReporter
 
 main :: IO ()
@@ -29,6 +30,7 @@ main =
                 , Day6.puzzle
                 , Day7.puzzle
                 , Day8.puzzle
+                , Day9.puzzle
                 ]
                     <&> \Puzzle{number, parser, parts, extraTests} ->
                         let
diff --git a/haskell/Puzzles/Day9.hs b/haskell/Puzzles/Day9.hs
new file mode 100644
index 0000000..103ffd7
--- /dev/null
+++ b/haskell/Puzzles/Day9.hs
@@ -0,0 +1,15 @@
+module Puzzles.Day9 (puzzle) where
+
+import Pre
+
+puzzle :: Puzzle
+puzzle =
+    Puzzle
+        { number = 9
+        , parser = mempty
+        , parts =
+            [ \() ->
+                "TODO"
+            ]
+        , extraTests = mempty
+        }
diff --git a/haskell/aoc.cabal b/haskell/aoc.cabal
index 6be3f13..69842eb 100644
--- a/haskell/aoc.cabal
+++ b/haskell/aoc.cabal
@@ -18,6 +18,7 @@ executable aoc
         Puzzles.Day6
         Puzzles.Day7
         Puzzles.Day8
+        Puzzles.Day9
     default-language: GHC2024
     default-extensions:
         BlockArguments
diff --git a/inputs/examples/9 b/inputs/examples/9
new file mode 100644
index 0000000..c8563ea
--- /dev/null
+++ b/inputs/examples/9
@@ -0,0 +1,8 @@
+7,1
+11,1
+11,7
+9,7
+9,5
+2,5
+2,3
+7,3
diff --git a/inputs/private b/inputs/private
index eaf1c6e..3f57387 160000
--- a/inputs/private
+++ b/inputs/private
@@ -1 +1 @@
-Subproject commit eaf1c6e5513f5915839bf35b05d9f0cfcf28f0e6
+Subproject commit 3f57387897cb0f36f145088c1c9fcf7935e13322
diff --git a/outputs/examples/9/1 b/outputs/examples/9/1
new file mode 100644
index 0000000..c5b431b
--- /dev/null
+++ b/outputs/examples/9/1
@@ -0,0 +1 @@
+50
\ No newline at end of file