Gattix/AoC
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Gattix 2023-12-07 14:04:36 +01:00
parent 4bbed10f38
commit 1bb30457aa
1 changed files with 9 additions and 9 deletions
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18
2023/day07/day07.hs
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@ -1,6 +1,6 @@
import Data.Char
import Data.Function (on)
import Data.List
import Data.Char
data Hand =
C Int Int Int Int Int
@ -27,7 +27,7 @@ handType (C x1 x2 x3 x4 x5) =
where
cList = sort $ map length $ group sList
sList = sort [x1, x2, x3, x4, x5]
j = length (filter (==1) sList)
j = length (filter (== 1) sList)
main :: IO ()
main = do
@ -35,17 +35,17 @@ main = do
print $ day07 (parse False input)
print $ day07 (parse True input)
day07 :: [(Hand, Int)] -> Int
day07 = sum . zipWith (*) [1..] . map snd . sort
day07 = sum . zipWith (*) [1 ..] . map snd . sort
parse :: Bool -> String -> [(Hand, Int)]
parse p2 = map (f . words) . lines
where f [x,y] = (parseHand x, read y)
f x = error ("parse: Malformed input: " ++ show x)
parseHand = g . map (digitToCard p2)
g [x1, x2, x3, x4, x5] = C x1 x2 x3 x4 x5
g x = error ("parseHand: Malformed input: " ++ show x)
where
f [x, y] = (parseHand x, read y)
f x = error ("parse: Malformed input: " ++ show x)
parseHand = g . map (digitToCard p2)
g [x1, x2, x3, x4, x5] = C x1 x2 x3 x4 x5
g x = error ("parseHand: Malformed input: " ++ show x)
digitToCard :: Bool -> Char -> Int
digitToCard p2 x