From 3ad0f674265f18dc390d3d6078348cea5f36f98c Mon Sep 17 00:00:00 2001
From: Neil Smith <NeilNjae@users.noreply.github.com>
Date: Tue, 27 Dec 2022 08:34:39 +0000
Subject: [PATCH] Tidying

---
 advent17/Main.hs | 1 -
 advent19/Main.hs | 4 ++--
 advent20/Main.hs | 4 ++--
 advent21/Main.hs | 2 +-
 advent22/Main.hs | 8 ++++++--
 advent25/Main.hs | 2 +-
 6 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/advent17/Main.hs b/advent17/Main.hs
index 57794a9..ce3ad42 100644
--- a/advent17/Main.hs
+++ b/advent17/Main.hs
@@ -4,7 +4,6 @@
 
 import AoC
 import qualified Data.Set as S
-import qualified Data.Map.Strict as M
 import Linear hiding (Trace, trace, distance)
 import Control.Lens
 import Data.Maybe
diff --git a/advent19/Main.hs b/advent19/Main.hs
index b5cd5c4..7fe0315 100644
--- a/advent19/Main.hs
+++ b/advent19/Main.hs
@@ -1,6 +1,6 @@
 -- Writeup at https://work.njae.me.uk/2022/12/21/advent-of-code-2022-day-19/
 
-import Debug.Trace
+-- import Debug.Trace
 
 import AoC
 import Data.Text (Text)
@@ -16,7 +16,7 @@ import Data.MultiSet as MS
 import Data.Sequence ((|>)) 
 import Data.List
 import Data.Maybe
-import Data.Ord
+-- import Data.Ord
 import Control.Monad.Reader
 import Control.Lens hiding ((<|), (|>), (:>), (:<), indices)
 import Control.Parallel.Strategies
diff --git a/advent20/Main.hs b/advent20/Main.hs
index eb60a15..355d949 100644
--- a/advent20/Main.hs
+++ b/advent20/Main.hs
@@ -1,10 +1,10 @@
 -- Writeup at https://work.njae.me.uk/2022/12/21/advent-of-code-2022-day-20/
 
 import AoC
-import Data.List
+import Data.List hiding (elemIndex)
 import Data.Maybe
 import Data.CircularList
-import Control.Lens
+import Control.Lens hiding (element)
 
 data IndexedElem = IndexedElem { _idx :: Int, _shift :: Int, _value :: Int}
     deriving (Show, Eq, Ord)
diff --git a/advent21/Main.hs b/advent21/Main.hs
index 1811612..6d856e5 100644
--- a/advent21/Main.hs
+++ b/advent21/Main.hs
@@ -7,7 +7,7 @@ import Data.Attoparsec.Text hiding (take, D)
 import Control.Applicative
 import qualified Data.Map.Strict as M
 import Data.Map.Strict ((!))
-import Control.Lens
+import Control.Lens hiding (op)
 
 data Shout = Literal Int | Operation Operator String String
   deriving (Show, Eq, Ord)
diff --git a/advent22/Main.hs b/advent22/Main.hs
index 1a2e1c7..848be83 100644
--- a/advent22/Main.hs
+++ b/advent22/Main.hs
@@ -2,6 +2,7 @@
 
 -- import Debug.Trace
 
+
 import AoC
 import Prelude hiding (Left, Right)
 import qualified Data.Map.Strict as M
@@ -253,13 +254,16 @@ isCell r c rows = isRow && isCol && ((rows !! r) !! c) `elem` (".#" :: String)
   where isRow = r < length rows
         isCol = c < (length $ rows !! r)
 
-mkInstructions :: String -> [PathElement]
+mkInstructions, mkWalk, mkTurn :: String -> [PathElement]
 mkInstructions [] = []
-mkInstructions text@(t:ts)
+mkInstructions text@(t:_)
   | isDigit t = mkWalk text
   | otherwise = mkTurn text
+
 mkWalk text = (Forward $ read digits) : (mkInstructions remainder)
   where (digits, remainder) = span (isDigit) text
+
+mkTurn [] = []
 mkTurn (t:ts) 
   | t == 'R' = Clockwise : (mkInstructions ts)
   | t == 'L' = Anticlockwise : (mkInstructions ts)
diff --git a/advent25/Main.hs b/advent25/Main.hs
index 28c33f7..c58c47d 100644
--- a/advent25/Main.hs
+++ b/advent25/Main.hs
@@ -35,7 +35,7 @@ packSnafu :: [Int] -> String
 packSnafu digits
   | carry == 0 = shown
   | otherwise = (snafuRep carry) : shown
-  where (carry, shown) = foldl' packSnafuDigit (0, "")
+  where (carry, shown) = foldl' packSnafuDigit (0, "") digits
 
 packSnafuDigit :: (Int, String) -> Int -> (Int, String)
 packSnafuDigit (carry, acc) d 
-- 
2.34.1