WIP AOC 2022 & 2023

AOC2022/.gitignore

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+.stack-work/
+.idea
+out/
+*.iml
+*~

AOC2022/CHANGELOG.md

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+# 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

AOC2022/LICENSE

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+Copyright Author name here (c) 2023
+
+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 Author name here 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.

AOC2022/README.md

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+# AOC2022

AOC2022/Setup.hs

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+import Distribution.Simple
+main = defaultMain

AOC2022/app/Main.hs

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+module Main (main)
+where
+
+import System.Environment
+
+import Day01
+import Day02
+import Day03
+import Day04
+import Day05
+
+main :: IO ()
+main = do
+  args <- getArgs
+  dayPicker args
+
+dayPicker :: [String] -> IO ()
+dayPicker [] = putStrLn "Usage: script [day]"
+dayPicker ("01":_) = day01
+dayPicker ("02":_) = day02
+dayPicker ("03":_) = day03
+dayPicker ("04":_) = day04
+dayPicker ("05":_) = day05
+
+dayPicker _ = putStrLn "Unavailable date"

AOC2022/package.yaml

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+name:                AOC2022
+version:             0.1.0.0
+github:              "githubuser/AOC2022"
+license:             BSD-3-Clause
+author:              "Author name here"
+maintainer:          "example@example.com"
+copyright:           "2023 Author name here"
+
+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/githubuser/AOC2022#readme>
+
+dependencies:
+- base >= 4.7 && < 5
+- 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

AOC2022/src/Day01.hs

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+module Day01 (day01) where
+
+import Data.List.Split (splitOn)
+import Data.List (sort)
+
+parseInput :: String -> [Int]
+parseInput = reverse . sort . map (sum . map read . lines) . splitOn "\n\n"
+
+day01 :: IO ()
+day01 = do
+  putStrLn "AoC 2022 day 1"
+  input <- getContents
+  putStrLn ""
+  let weights = parseInput input
+  putStrLn "Part1:"
+  print (sum $ take 1 weights)
+  putStrLn "Part2:"
+  print (sum $ take 3 weights)

AOC2022/src/Day02.hs

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+module Day02 (day02) where
+
+parseInput :: String -> [(Char, Char)]
+parseInput input = map parseLine (lines input)
+  where parseLine :: String -> (Char, Char)
+        parseLine (c1 : ' ' : c2 : _) = (c1, c2)
+        parseLine _ = error "Wrong input!"
+
+convertToNumbers :: (Char, Char) -> (Int, Int)
+convertToNumbers (c1, c2) = (conv1 c1, conv2 c2)
+  where conv1 'A' = 1
+        conv1 'B' = 2
+        conv1 'C' = 3
+        conv1 _ = error "Wrong input for shape1"
+        conv2 'X' = 1
+        conv2 'Y' = 2
+        conv2 'Z' = 3
+        conv2 _ = error "Wrong input for shape2"
+
+roundP1 :: (Int, Int) -> Int
+roundP1 (1, 3) = 3
+roundP1 (3, 1) = 7
+roundP1 (c1, c2)
+  | c1 > c2  = c2
+  | c1 == c2 = c2 + 3
+  | c1 < c2  = c2 + 6
+roundP1 (_, _) = 0
+
+roundP2 :: (Int, Int) -> Int
+roundP2 (c, 1) -- Lose
+  | c == 1 = 3
+  | otherwise = c - 1
+roundP2 (c, 2) = c + 3
+roundP2 (c, 3) -- Win
+  | c == 3 = 7
+  | otherwise = c + 1 + 6
+roundP2 (_, _) = 0
+
+day02 :: IO ()
+day02 = do
+  putStrLn "AoC 2022 day 2"
+  input <- getContents
+  let input_ = parseInput input
+  putStrLn "Part1"
+  print $ sum $ map (roundP1 . convertToNumbers) input_
+  putStrLn "Part2"
+  print $ sum $ map (roundP2 . convertToNumbers) input_

AOC2022/src/Day03.hs

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+module Day03 (day03) where
+
+import Data.List (intersect)
+import Data.List.Split (chunksOf)
+import Data.Char (ord)
+
+getCommonP1 :: String -> Char
+getCommonP1 input = let
+    part1 = take half input
+    part2 = drop half input
+    half = div (length input) 2
+  in (intersect part1 part2) !! 0
+
+getCommonP2 :: [[Char]] -> Char
+getCommonP2 [] = '!'
+getCommonP2 (h:t) = (foldr intersect h t) !! 0
+
+getPriority :: Char -> Int
+getPriority c
+  | c >= 'a' && c <= 'z' = ord c - ord 'a' + 1
+  | c >= 'A' && c <= 'Z' = ord c - ord 'A' + 27
+  | otherwise = 0
+
+day03 :: IO ()
+day03 = do
+  putStrLn "AoC 2022 day 3"
+  input <- getContents
+  putStrLn "Part1"
+  let resP1 = sum $ map (getPriority . getCommonP1) (lines input)
+  print resP1
+  putStrLn "Part2"
+  let resP2 = sum $ map (getPriority . getCommonP2) $ chunksOf 3 (lines input)
+  print resP2

AOC2022/src/Day04.hs

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+module Day04 (day04) where
+
+import Data.List (intersect)
+import Data.List.Split (splitOn)
+
+parseSections :: String -> [Int]
+parseSections input = [startInt..endInt]
+  where (start : end : _) = splitOn "-" input
+        startInt = read start :: Int
+        endInt = read end :: Int
+
+
+parseLine :: String -> ([Int], [Int])
+parseLine input = (sections1, sections2)
+  where sections1 = parseSections $ head parts
+        sections2 = parseSections $ last parts
+        parts = splitOn "," input
+
+completelyOverlap :: ([Int], [Int]) -> Bool
+completelyOverlap (s1, s2) = overlapLen == s1Len || overlapLen == s2Len
+  where overlap = s1 `intersect` s2
+        overlapLen = length overlap
+        s1Len = length s1
+        s2Len = length s2
+
+doOverlap :: ([Int], [Int]) -> Bool
+doOverlap (s1, s2) = not . null $ s1 `intersect` s2
+
+day04 :: IO ()
+day04 = do
+  putStrLn "AoC 2022 day 4"
+  input <- getContents
+  let parsed = map parseLine $ lines input
+  putStrLn "Part1"
+  let resP1 = length $ filter completelyOverlap parsed
+  print resP1
+  putStrLn "Part2"
+  let resP2 = length $ filter doOverlap parsed
+  print resP2

AOC2022/src/Day05.hs

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+module Day05 (day05) where
+
+import Data.List.Split (splitOn, chunksOf)
+
+updateAcc :: [[Char]] -> String -> [[Char]]
+updateAcc acc line = acc ++ newItems
+  where newItems = map (take 1) $ chunksOf 4 line
+
+parsePart1 :: [[Char]] -> [String] -> [[Char]]
+parsePart1 acc [] = acc
+parsePart1 acc (h:t) = parsePart1 updatedAcc t
+  where updatedAcc = updateAcc acc (drop 1 h)
+
+day05 :: IO ()
+day05 = do
+  putStrLn "AoC 2022 day 5"
+  input <- getContents
+  putStrLn "Part1"
+  let inputParts = splitOn "\n\n" input
+  let inputPart1 = parsePart1 [] $ drop 1 $ reverse $ lines $ head inputParts
+  let inputPart2 = lines $ last inputParts
+  putStrLn "input p1"
+  print $ drop 1 $ reverse $ lines $ head inputParts
+  print inputPart1
+  putStrLn "input p2"
+  print inputPart2

AOC2022/stack.yaml

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+# 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-21.13
+# resolver: nightly-2023-09-24
+# resolver: ghc-9.6.2
+#
+# 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/2023-01-01.yaml
+resolver:
+  url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/21/22.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: ">=2.13"
+#
+# 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

AOC2022/stack.yaml.lock

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+# 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: afd5ba64ab602cabc2d3942d3d7e7dd6311bc626dcb415b901eaf576cb62f0ea
+    size: 640060
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/21/22.yaml
+  original:
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/21/22.yaml

AOC2022/test/Spec.hs

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+main :: IO ()
+main = putStrLn "Test suite not yet implemented"