day1

.gitignore

@@ -0,0 +1,5 @@
+.stack-work/
+*~
+.idea/
+aoc2022.iml
+out/

CHANGELOG.md

@@ -0,0 +1,11 @@
+# Changelog for `aoc2022`
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to the
+[Haskell Package Versioning Policy](https://pvp.haskell.org/).
+
+## Unreleased
+
+## 0.1.0.0 - YYYY-MM-DD

LICENSE

@@ -0,0 +1,30 @@
+Copyright Jens Kadenbach (c) 2022
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+
+    * Neither the name of Jens Kadenbach nor the names of other
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

README.md

@@ -0,0 +1 @@
+# aoc2022

Setup.hs

@@ -0,0 +1,2 @@
+import Distribution.Simple
+main = defaultMain

aoc2022.cabal

@@ -0,0 +1,75 @@
+cabal-version: 1.12
+
+-- This file has been generated from package.yaml by hpack version 0.35.0.
+--
+-- see: https://github.com/sol/hpack
+
+name:           aoc2022
+version:        0.1.0.0
+description:    Please see the README on GitHub at <https://github.com/audax/aoc2022#readme>
+homepage:       https://github.com/audax/aoc2022#readme
+bug-reports:    https://github.com/audax/aoc2022/issues
+author:         Jens Kadenbach
+maintainer:     jens.kadenbach@smartsteuer.de
+copyright:      2022 Jens Kadenbach
+license:        BSD3
+license-file:   LICENSE
+build-type:     Simple
+extra-source-files:
+    README.md
+    CHANGELOG.md
+
+source-repository head
+  type: git
+  location: https://github.com/audax/aoc2022
+
+library
+  exposed-modules:
+      Day1
+      Day1.Internal
+      Lib
+  other-modules:
+      Paths_aoc2022
+  hs-source-dirs:
+      src
+  ghc-options: -Wall -Wcompat -Widentities -Wincomplete-record-updates -Wincomplete-uni-patterns -Wmissing-export-lists -Wmissing-home-modules -Wpartial-fields -Wredundant-constraints
+  build-depends:
+      QuickCheck
+    , base >=4.7 && <5
+    , hspec
+    , split
+    , text
+  default-language: Haskell2010
+
+executable aoc2022-exe
+  main-is: Main.hs
+  other-modules:
+      Paths_aoc2022
+  hs-source-dirs:
+      app
+  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
+  build-depends:
+      QuickCheck
+    , aoc2022
+    , base >=4.7 && <5
+    , hspec
+    , split
+    , text
+  default-language: Haskell2010
+
+test-suite aoc2022-test
+  type: exitcode-stdio-1.0
+  main-is: Spec.hs
+  other-modules:
+      Paths_aoc2022
+  hs-source-dirs:
+      test
+  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
+  build-depends:
+      QuickCheck
+    , aoc2022
+    , base >=4.7 && <5
+    , hspec
+    , split
+    , text
+  default-language: Haskell2010

app/Main.hs

@@ -0,0 +1,6 @@
+module Main (main) where
+
+import Lib
+
+main :: IO ()
+main = someFunc

package.yaml

@@ -0,0 +1,63 @@
+name:                aoc2022
+version:             0.1.0.0
+github:              "audax/aoc2022"
+license:             BSD3
+author:              "Jens Kadenbach"
+maintainer:          "jens.kadenbach@smartsteuer.de"
+copyright:           "2022 Jens Kadenbach"
+
+extra-source-files:
+- README.md
+- CHANGELOG.md
+
+# Metadata used when publishing your package
+# synopsis:            Short description of your package
+# category:            Web
+
+# To avoid duplicated efforts in documentation and dealing with the
+# complications of embedding Haddock markup inside cabal files, it is
+# common to point users to the README.md file.
+description:         Please see the README on GitHub at <https://github.com/audax/aoc2022#readme>
+
+dependencies:
+- base >= 4.7 && < 5
+- hspec
+- QuickCheck
+- text
+- split
+
+ghc-options:
+- -Wall
+- -Wcompat
+- -Widentities
+- -Wincomplete-record-updates
+- -Wincomplete-uni-patterns
+- -Wmissing-export-lists
+- -Wmissing-home-modules
+- -Wpartial-fields
+- -Wredundant-constraints
+
+library:
+  source-dirs: src
+
+executables:
+  aoc2022-exe:
+    main:                Main.hs
+    source-dirs:         app
+    ghc-options:
+    - -threaded
+    - -rtsopts
+    - -with-rtsopts=-N
+    dependencies:
+    - aoc2022
+
+tests:
+  aoc2022-test:
+    main:                Spec.hs
+    source-dirs:         test
+    ghc-options:
+    - -threaded
+    - -rtsopts
+    - -with-rtsopts=-N
+    dependencies:
+    - aoc2022

ressources/day01-input-test

@@ -0,0 +1,14 @@
+1000
+2000
+3000
+
+4000
+
+5000
+6000
+
+7000
+8000
+9000
+
+10000

src/Day1.hs

@@ -0,0 +1,39 @@
+module Day1 (
+  day1,
+  findElfWithHighestCalorieCount,
+  findCaloriesOfTop3Elves
+) where
+
+import qualified Data.Text as T
+import Day1.Internal
+
+day1 :: IO ()
+day1 = do
+  putStrLn "Day1"
+  calorieCount <- day1_1
+  putStrLn ("Highest calorie count = " ++ calorieCount)
+  caloriesOfTop3Elves <- day1_2
+  putStrLn ("Calories of top 3 elves = " ++ caloriesOfTop3Elves)
+  putStrLn "-----------"
+
+
+day1_1 :: IO String
+day1_1 = do
+  input <- readFile "ressources/day01-input"
+  return (show $ findElfWithHighestCalorieCount $ T.pack input)
+
+day1_2 :: IO String
+day1_2 = do
+  input <- readFile "ressources/day01-input"
+  return (show $ findCaloriesOfTop3Elves $ T.pack input)
+
+
+findCaloriesOfTop3Elves :: T.Text -> CalorieCount
+findCaloriesOfTop3Elves  =
+  calories . sumCalories . take 3 . sortElves . elfToCalories
+  where
+    sumCalories :: [Elf] -> Int
+    sumCalories = sum . map caloriesOf
+
+findElfWithHighestCalorieCount :: T.Text -> Elf
+findElfWithHighestCalorieCount = head .sortElves . elfToCalories

src/Day1/Internal.hs

@@ -0,0 +1,66 @@
+{-# LANGUAGE OverloadedStrings #-}
+module Day1.Internal (
+  elfToCalories,
+  Elf,
+  CalorieCount,
+  calories,
+  elf,
+  parseElfGroups,
+  intOrZero,
+  sortElves,
+  caloriesOf
+) where
+
+import qualified Data.Text as T
+import qualified Data.Text.Read as R
+import Data.List.Split
+import qualified Data.List as L
+import Data.Either
+
+newtype CalorieCount = CalorieCount Int
+newtype Elf = Elf CalorieCount
+
+instance Show CalorieCount where
+  show (CalorieCount c) = "Calories[" ++ show c ++ "]"
+
+instance Show Elf where
+  show (Elf (CalorieCount c)) = "Elf[" ++ show c ++ "]"
+  
+instance Eq CalorieCount where
+  (==) (CalorieCount c1) (CalorieCount c2)  = c1 == c2
+
+instance Eq Elf where
+  (==) (Elf (CalorieCount c1)) (Elf (CalorieCount c2))  = c1 == c2
+
+instance Ord Elf where
+  compare (Elf (CalorieCount c1)) (Elf (CalorieCount c2)) = compare c1 c2
+
+elf :: Int -> Elf
+elf c = Elf (CalorieCount c)
+
+calories :: Int -> CalorieCount
+calories = CalorieCount
+
+caloriesOf :: Elf -> Int
+caloriesOf (Elf (CalorieCount c)) = c
+
+sortElves :: [Elf] -> [Elf]
+sortElves = L.reverse . L.sort
+
+elfToCalories :: T.Text -> [Elf]
+elfToCalories input = map elf sums
+  where
+    groups = parseElfGroups input
+    sums = map sum groups
+
+parseElfGroups :: T.Text -> [[Int]]
+parseElfGroups input = map (map intOrZero) groups
+  where
+  groups = splitWhen (== "") $ T.lines input
+
+
+intOrZero:: T.Text -> Int
+intOrZero text = val
+  where
+  (val, _) = fromRight (0, "") $ R.decimal text
+

src/Lib.hs

@@ -0,0 +1,9 @@
+module Lib
+    ( someFunc
+    ) where
+      
+import Day1      
+
+someFunc :: IO ()
+someFunc = day1
+

stack.yaml

@@ -0,0 +1,67 @@
+# This file was automatically generated by 'stack init'
+#
+# Some commonly used options have been documented as comments in this file.
+# For advanced use and comprehensive documentation of the format, please see:
+# https://docs.haskellstack.org/en/stable/yaml_configuration/
+
+# Resolver to choose a 'specific' stackage snapshot or a compiler version.
+# A snapshot resolver dictates the compiler version and the set of packages
+# to be used for project dependencies. For example:
+#
+# resolver: lts-3.5
+# resolver: nightly-2015-09-21
+# resolver: ghc-7.10.2
+#
+# The location of a snapshot can be provided as a file or url. Stack assumes
+# a snapshot provided as a file might change, whereas a url resource does not.
+#
+# resolver: ./custom-snapshot.yaml
+# resolver: https://example.com/snapshots/2018-01-01.yaml
+resolver:
+  url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/20/2.yaml
+
+# User packages to be built.
+# Various formats can be used as shown in the example below.
+#
+# packages:
+# - some-directory
+# - https://example.com/foo/bar/baz-0.0.2.tar.gz
+#   subdirs:
+#   - auto-update
+#   - wai
+packages:
+- .
+# Dependency packages to be pulled from upstream that are not in the resolver.
+# These entries can reference officially published versions as well as
+# forks / in-progress versions pinned to a git hash. For example:
+#
+# extra-deps:
+# - acme-missiles-0.3
+# - git: https://github.com/commercialhaskell/stack.git
+#   commit: e7b331f14bcffb8367cd58fbfc8b40ec7642100a
+#
+# extra-deps: []
+
+# Override default flag values for local packages and extra-deps
+# flags: {}
+
+# Extra package databases containing global packages
+# extra-package-dbs: []
+
+# Control whether we use the GHC we find on the path
+# system-ghc: true
+#
+# Require a specific version of stack, using version ranges
+# require-stack-version: -any # Default
+# require-stack-version: ">=2.9"
+#
+# Override the architecture used by stack, especially useful on Windows
+# arch: i386
+# arch: x86_64
+#
+# Extra directories used by stack for building
+# extra-include-dirs: [/path/to/dir]
+# extra-lib-dirs: [/path/to/dir]
+#
+# Allow a newer minor version of GHC than the snapshot specifies
+# compiler-check: newer-minor

stack.yaml.lock

@@ -0,0 +1,13 @@
+# This file was autogenerated by Stack.
+# You should not edit this file by hand.
+# For more information, please see the documentation at:
+#   https://docs.haskellstack.org/en/stable/lock_files
+
+packages: []
+snapshots:
+- completed:
+    sha256: fc39d8afc97531d53d87b10abdef593bce503c0c1e46c2e9a84ebcbc78bf8470
+    size: 648432
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/20/2.yaml
+  original:
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/20/2.yaml

test/Spec.hs

@@ -0,0 +1,25 @@
+{-# LANGUAGE OverloadedStrings #-}
+import Test.Hspec
+import Day1
+import Day1.Internal
+import qualified Data.Text as T
+
+main :: IO ()
+main = hspec $ do
+  describe "Day1" $ do
+    it "sorts elves" $ do
+       let input = [ elf 6000, elf 4000, elf 11000]
+       sortElves input `shouldBe` [ elf 11000, elf 6000, elf 4000]
+    it "converts a list of strings to a list of either int or caloriecount" $ do
+       input <- readFile "ressources/day01-input-test"
+       elfToCalories (T.pack input) `shouldBe`
+          [ elf 6000, elf 4000, elf 11000, elf 24000, elf 10000 ]
+    it "parser text to int" $ do
+        intOrZero "1000" `shouldBe` 1000
+    it "finds the elf with the highest calorie count" $ do
+       input <- readFile "ressources/day01-input-test"
+       findElfWithHighestCalorieCount (T.pack input) `shouldBe` elf 24000
+    it "sums the calorie counts" $ do
+       input <- readFile "ressources/day01-input-test"
+       findCaloriesOfTop3Elves (T.pack input) `shouldBe` calories 45000
+