Day 06 solution
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BF6CB659ADEE60EC
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.stack-work/
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*~
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cabal-version: 1.12
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-- This file has been generated from package.yaml by hpack version 0.36.0.
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--
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-- see: https://github.com/sol/hpack
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name: day06a
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version: 0.1.0.0
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description: Please see the README at <https://git.astolfo.cool/natty/aoc23#readme>
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author: Natty
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maintainer: natty.sh.git@gmail.com
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copyright: 2023 Natty
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build-type: Simple
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executable day06a
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main-is: Main.hs
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other-modules:
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Paths_day06a
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hs-source-dirs:
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src
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ghc-options: -Wall -Wcompat -Widentities -Wincomplete-record-updates -Wincomplete-uni-patterns -Wmissing-export-lists -Wmissing-home-modules -Wpartial-fields -Wredundant-constraints -threaded -rtsopts -with-rtsopts=-N
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build-depends:
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base >=4.7 && <5
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, containers
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, megaparsec
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, text
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default-language: Haskell2010
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Time: 58 99 64 69
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Distance: 478 2232 1019 1071
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name: day06a
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version: 0.1.0.0
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author: "Natty"
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maintainer: "natty.sh.git@gmail.com"
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copyright: "2023 Natty"
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description: Please see the README at <https://git.astolfo.cool/natty/aoc23#readme>
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dependencies:
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- base >= 4.7 && < 5
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- megaparsec
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- containers
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- text
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ghc-options:
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- -Wall
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- -Wcompat
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- -Widentities
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- -Wincomplete-record-updates
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- -Wincomplete-uni-patterns
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- -Wmissing-export-lists
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- -Wmissing-home-modules
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- -Wpartial-fields
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- -Wredundant-constraints
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executables:
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day06a:
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main: Main.hs
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source-dirs: src
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ghc-options:
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- -threaded
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- -rtsopts
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- -with-rtsopts=-N
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE ViewPatterns #-}
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{-# LANGUAGE TypeApplications #-}
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{-# LANGUAGE ScopedTypeVariables #-}
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module Main (main) where
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import qualified Data.Text as T
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import Data.List ( transpose )
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import Data.Bifunctor (Bifunctor(bimap))
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parseRace :: [T.Text] -> (Integer, Integer)
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parseRace [read @Integer . T.unpack -> time, read @Integer . T.unpack -> dist] = (time, dist)
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parseRace _ = error "Parse"
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main :: IO ()
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main = do
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lns <- lines <$> getContents
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print
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$ product
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$ (\(time, dist) -> (\x -> floor (time / 2 + x) - ceiling (time / 2 - x) + 1) . subtract 0.000001 . sqrt . subtract dist . (**2) . (/2) $ time)
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<$> ((bimap (fromIntegral @_ @Double) (fromIntegral @_ @Double)
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. parseRace <$>)
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. drop 1
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. transpose
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$ T.words . T.pack <$> lns)
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resolver: lts-21.21
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packages:
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- .
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extra-deps: []
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# This file was autogenerated by Stack.
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# You should not edit this file by hand.
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# For more information, please see the documentation at:
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# https://docs.haskellstack.org/en/stable/lock_files
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packages: []
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snapshots:
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- completed:
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sha256: 7d4b649cf368f9076d8aa049aa44efe58950971d105892734e9957b2a26a2186
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size: 640060
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url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/21/21.yaml
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original: lts-21.21
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@ -0,0 +1,2 @@
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Time: 7 15 30
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Distance: 9 40 200
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@ -0,0 +1,2 @@
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.stack-work/
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*~
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@ -0,0 +1,28 @@
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cabal-version: 1.12
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-- This file has been generated from package.yaml by hpack version 0.36.0.
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--
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-- see: https://github.com/sol/hpack
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name: day06b
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version: 0.1.0.0
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description: Please see the README at <https://git.astolfo.cool/natty/aoc23#readme>
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author: Natty
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maintainer: natty.sh.git@gmail.com
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copyright: 2023 Natty
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build-type: Simple
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executable day06b
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main-is: Main.hs
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other-modules:
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Paths_day06b
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hs-source-dirs:
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src
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ghc-options: -Wall -Wcompat -Widentities -Wincomplete-record-updates -Wincomplete-uni-patterns -Wmissing-export-lists -Wmissing-home-modules -Wpartial-fields -Wredundant-constraints -threaded -rtsopts -with-rtsopts=-N
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build-depends:
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base >=4.7 && <5
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, bifunctors
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, containers
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, megaparsec
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, text
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default-language: Haskell2010
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@ -0,0 +1,2 @@
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Time: 58 99 64 69
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Distance: 478 2232 1019 1071
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@ -0,0 +1,34 @@
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name: day06b
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version: 0.1.0.0
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author: "Natty"
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maintainer: "natty.sh.git@gmail.com"
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copyright: "2023 Natty"
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description: Please see the README at <https://git.astolfo.cool/natty/aoc23#readme>
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dependencies:
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- base >= 4.7 && < 5
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- megaparsec
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- containers
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- text
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- bifunctors
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ghc-options:
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- -Wall
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- -Wcompat
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- -Widentities
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- -Wincomplete-record-updates
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- -Wincomplete-uni-patterns
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- -Wmissing-export-lists
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- -Wmissing-home-modules
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- -Wpartial-fields
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- -Wredundant-constraints
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executables:
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day06b:
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main: Main.hs
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source-dirs: src
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ghc-options:
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- -threaded
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- -rtsopts
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- -with-rtsopts=-N
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@ -0,0 +1,28 @@
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE ViewPatterns #-}
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{-# LANGUAGE TypeApplications #-}
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{-# LANGUAGE ScopedTypeVariables #-}
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module Main (main) where
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import qualified Data.Text as T
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import Data.List ( transpose )
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import Data.Bifunctor (Bifunctor(bimap))
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parseRace :: [T.Text] -> (Integer, Integer)
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parseRace [read @Integer . T.unpack -> time, read @Integer . T.unpack -> dist] = (time, dist)
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parseRace _ = error "Parse"
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main :: IO ()
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main = do
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lns <- lines <$> getContents
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print
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$ (\(time, dist) -> (\x -> floor (time / 2 + x) - ceiling (time / 2 - x) + 1)
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. subtract 0.000001
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. sqrt
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. subtract dist
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. (**2)
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. (/2) $ time)
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. bimap (fromIntegral @_ @Double) (fromIntegral @_ @Double)
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$ parseRace
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$ T.concat <$> (transpose . drop 1 . transpose $ T.words . T.pack <$> lns)
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@ -0,0 +1,6 @@
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resolver: lts-21.21
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packages:
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- .
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extra-deps: []
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||||
|
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@ -0,0 +1,12 @@
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# This file was autogenerated by Stack.
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# You should not edit this file by hand.
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# For more information, please see the documentation at:
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# https://docs.haskellstack.org/en/stable/lock_files
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||||
|
||||
packages: []
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snapshots:
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||||
- completed:
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||||
sha256: 7d4b649cf368f9076d8aa049aa44efe58950971d105892734e9957b2a26a2186
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||||
size: 640060
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||||
url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/21/21.yaml
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original: lts-21.21
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@ -0,0 +1,2 @@
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Time: 7 15 30
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Distance: 9 40 200
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3
run.sh
3
run.sh
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@ -24,7 +24,8 @@ case "$1" in
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"day01a" | "day01b" | \
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"day02a" | "day02b" | \
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"day03a" | "day03b" | \
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"day04a" | "day04b") stack run <input.txt
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"day04a" | "day04b" | \
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"day06a" | "day06b" ) stack run <input.txt
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;;
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# Default solutions -- Java
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*) ./gradlew run <input.txt
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