fuxino/AdventOfCode2024
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Fix indentation

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This commit is contained in:
daniele 2024-12-08 16:28:47 +01:00
parent 0038d22c5b
commit c277c8d1fc
Signed by: fuxino
GPG Key ID: 981A2B2A3BBF5514
5 changed files with 40 additions and 40 deletions
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4
Day4/puzzle1.hs
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@ -13,8 +13,8 @@ countOccurrences word text = sum (map (countOccurrences' word) text) + sum (map
diags = diagonals text
countOccurrences' _ [] = 0
countOccurrences' word text@(_:rest) = if word `isPrefixOf` text
then 1 + countOccurrences' word rest
else countOccurrences' word rest
then 1 + countOccurrences' word rest
else countOccurrences' word rest
main = do
contents <- lines <$> readFile "day4.txt"

14
Day4/puzzle2.hs
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@ -2,16 +2,16 @@ import Data.List (transpose, isPrefixOf, tails)
diagonals :: [String] -> [String]
diagonals xs = diagonals' xs ++ diagonals' ((transpose . reverse) xs)
where diagonals' xs = transpose (zipWith drop [0..] xs)
++ transpose (zipWith drop [1..] (transpose xs))
where diagonals' xs = transpose (zipWith drop [0..] xs)
++ transpose (zipWith drop [1..] (transpose xs))
countOccurrences :: String -> [String] -> Int
countOccurrences word text = sum (map (countOccurrences' word) diags) + sum (map (countOccurrences' word . reverse) diags)
where diags = diagonals text
countOccurrences' _ [] = 0
countOccurrences' word text@(_:rest) = if word `isPrefixOf` text
then 1 + countOccurrences' word rest
else countOccurrences' word rest
where diags = diagonals text
countOccurrences' _ [] = 0
countOccurrences' word text@(_:rest) = if word `isPrefixOf` text
then 1 + countOccurrences' word rest
else countOccurrences' word rest
submatricesVert :: Int -> [String] -> [[String]]
submatricesVert _ [] = []

6
Day5/puzzle2.hs
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@ -12,9 +12,9 @@ getMiddle xs = xs !! (length xs `div` 2)
sortOnRules :: [(Int, Int)] -> [Int] -> [Int]
sortOnRules _ [] = []
sortOnRules rules (x:xs) = sortOnRules rules beforeArray ++ [x] ++ sortOnRules rules afterArray
where afterArray = xs \\ before
beforeArray = xs \\ afterArray
before = [ p | (p, n) <- rules, n == x ]
where afterArray = xs \\ before
beforeArray = xs \\ afterArray
before = [ p | (p, n) <- rules, n == x ]
main = do
contents <- map (splitOn "|") . lines <$> readFile "day5.txt"

24
Day6/puzzle1.hs
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@ -13,8 +13,8 @@ getDirection '<' = L
getStartPosition:: Char -> Grid -> Position
getStartPosition c grid = (x, y)
where x = fromMaybe (-1) . elemIndex True . map (isJust . elemIndex c) $ grid
y = if x == -1 then -1 else fromMaybe (-1) . elemIndex c $ grid !! x
where x = fromMaybe (-1) . elemIndex True . map (isJust . elemIndex c) $ grid
y = if x == -1 then -1 else fromMaybe (-1) . elemIndex c $ grid !! x
getGridVal :: Position -> Grid -> Char
getGridVal (x, y) grid = (grid !! x) !! y
@ -26,23 +26,23 @@ getNextPosition :: Position -> Direction -> Grid -> (Position, Direction)
getNextPosition (x, y) U grid = let newPos = (x - 1, y)
gridVal = getGridVal newPos grid
in if newPos `isInside` grid && gridVal == '#'
then getNextPosition (x, y) R grid
else (newPos, U)
then getNextPosition (x, y) R grid
else (newPos, U)
getNextPosition (x, y) R grid = let newPos = (x, y + 1)
gridVal = getGridVal newPos grid
in if newPos `isInside` grid && gridVal == '#'
then getNextPosition (x, y) D grid
else (newPos, R)
then getNextPosition (x, y) D grid
else (newPos, R)
getNextPosition (x, y) D grid = let newPos = (x + 1, y)
gridVal = getGridVal newPos grid
in if newPos `isInside` grid && gridVal == '#'
then getNextPosition (x, y) L grid
else (newPos, D)
then getNextPosition (x, y) L grid
else (newPos, D)
getNextPosition (x, y) L grid = let newPos = (x, y - 1)
gridVal = getGridVal newPos grid
in if newPos `isInside` grid && gridVal == '#'
then getNextPosition (x, y) U grid
else (newPos, L)
then getNextPosition (x, y) U grid
else (newPos, L)
markVisited :: Position -> Char -> Grid -> Grid
markVisited (x, y) c grid = let row = grid !! x
@ -53,8 +53,8 @@ visitGrid :: Position -> Direction -> Grid -> Grid
visitGrid (x, y) direction grid = let newGrid = markVisited (x, y) 'X' grid
(nextPosition, newDirection) = getNextPosition (x, y) direction grid
in if nextPosition `isInside` newGrid
then visitGrid nextPosition newDirection newGrid
else newGrid
then visitGrid nextPosition newDirection newGrid
else newGrid
main = do
contents <- lines <$> readFile "day6.txt"

32
Day6/puzzle2.hs
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@ -19,8 +19,8 @@ printDirection L = '<'
getStartPosition :: Char -> Grid -> Position
getStartPosition c grid = (x, y)
where x = fromMaybe (-1) . elemIndex True . map (isJust . elemIndex c) $ grid
y = if x == -1 then -1 else fromMaybe (-1) . elemIndex c $ grid !! x
where x = fromMaybe (-1) . elemIndex True . map (isJust . elemIndex c) $ grid
y = if x == -1 then -1 else fromMaybe (-1) . elemIndex c $ grid !! x
getGridVal :: Position -> Grid -> Char
getGridVal (x, y) grid = (grid !! x) !! y
@ -32,38 +32,38 @@ getNextPosition :: Position -> Direction -> Grid -> (Position, Direction)
getNextPosition (x, y) U grid = let newPos = (x - 1, y)
gridVal = getGridVal newPos grid
in if newPos `isInside` grid && gridVal == '#'
then getNextPosition (x, y) R grid
else (newPos, U)
then getNextPosition (x, y) R grid
else (newPos, U)
getNextPosition (x, y) R grid = let newPos = (x, y + 1)
gridVal = getGridVal newPos grid
in if newPos `isInside` grid && gridVal == '#'
then getNextPosition (x, y) D grid
else (newPos, R)
then getNextPosition (x, y) D grid
else (newPos, R)
getNextPosition (x, y) D grid = let newPos = (x + 1, y)
gridVal = getGridVal newPos grid
in if newPos `isInside` grid && gridVal == '#'
then getNextPosition (x, y) L grid
else (newPos, D)
then getNextPosition (x, y) L grid
else (newPos, D)
getNextPosition (x, y) L grid = let newPos = (x, y - 1)
gridVal = getGridVal newPos grid
in if newPos `isInside` grid && gridVal == '#'
then getNextPosition (x, y) U grid
else (newPos, L)
then getNextPosition (x, y) U grid
else (newPos, L)
markVisited :: Position -> Char -> Grid -> Grid
markVisited (x, y) c grid = let gridVal = getGridVal (x, y) grid
in if gridVal == '#' || gridVal == '^' || gridVal == '>' || gridVal == 'v' || gridVal == '<'
then grid
else let row = grid !! x
newRow = take y row ++ [c] ++ drop (y + 1) row
in take x grid ++ [newRow] ++ drop (x + 1) grid
then grid
else let row = grid !! x
newRow = take y row ++ [c] ++ drop (y + 1) row
in take x grid ++ [newRow] ++ drop (x + 1) grid
visitGrid :: Position -> Direction -> Grid -> Grid
visitGrid (x, y) direction grid = let newGrid = markVisited (x, y) 'X' grid
(nextPosition, newDirection) = getNextPosition (x, y) direction grid
in if nextPosition `isInside` newGrid
then visitGrid nextPosition newDirection newGrid
else newGrid
then visitGrid nextPosition newDirection newGrid
else newGrid
checkGridLoop :: Position -> Direction -> Grid -> Bool
checkGridLoop startPosition direction grid = let (nextPosition, newDirection) = getNextPosition startPosition direction grid