aboutsummaryrefslogtreecommitdiff
path: root/2023/1-Trebuchet/first.hs
diff options
context:
space:
mode:
authorJulien Dessaux2023-12-02 13:30:30 +0100
committerJulien Dessaux2023-12-02 13:30:30 +0100
commit72a14842504e028edaefc697a7bdc957e9be1155 (patch)
tree70f9c8503db390a677517dd6589094a1f20c374e /2023/1-Trebuchet/first.hs
parent2023-01 in haskell (diff)
downloadadvent-of-code-72a14842504e028edaefc697a7bdc957e9be1155.tar.gz
advent-of-code-72a14842504e028edaefc697a7bdc957e9be1155.tar.bz2
advent-of-code-72a14842504e028edaefc697a7bdc957e9be1155.zip
Renaming
Diffstat (limited to '2023/1-Trebuchet/first.hs')
-rw-r--r--2023/1-Trebuchet/first.hs44
1 files changed, 0 insertions, 44 deletions
diff --git a/2023/1-Trebuchet/first.hs b/2023/1-Trebuchet/first.hs
deleted file mode 100644
index 366d28e..0000000
--- a/2023/1-Trebuchet/first.hs
+++ /dev/null
@@ -1,44 +0,0 @@
--- requires cabal install --lib megaparsec parser-combinators
-module Main (main) where
-import Control.Monad (void, when)
-import Data.Char qualified as C
-import Data.List qualified as L
-import Data.Map qualified as M
-import Data.Maybe
-import Data.Set qualified as S
-import Data.Void (Void)
-import Text.Megaparsec
-import Text.Megaparsec.Char
-
-exampleExpectedOutput = 142
-
-type Input = [String]
-
-type Parser = Parsec Void String
-
-parseInput' :: Parser Input
-parseInput' = some (some alphaNumChar <* eol) <* eof
-
-parseInput :: String -> IO Input
-parseInput filename = do
- input <- readFile filename
- case runParser parseInput' filename input of
- Left bundle -> error $ errorBundlePretty bundle
- Right input' -> return input'
-
-process :: Int -> String -> Int
-process acc str = acc + f * 10 + l
- where
- f = C.digitToInt . head $ dropWhile C.isLetter str
- l = C.digitToInt . head . dropWhile C.isLetter $ reverse str
-
-compute :: Input -> Int
-compute = L.foldl' process 0
-
-main :: IO ()
-main = do
- example <- parseInput "example"
- let exampleOutput = compute example
- when (exampleOutput /= exampleExpectedOutput) (error $ "example failed: got " ++ show exampleOutput ++ " instead of " ++ show exampleExpectedOutput)
- input <- parseInput "input"
- print $ compute input