diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..a76975e --- /dev/null +++ b/.gitignore @@ -0,0 +1,404 @@ +## Ignore Visual Studio temporary files, build results, and +## files generated by popular Visual Studio add-ons. +## +## Get latest from https://github.com/github/gitignore/blob/main/VisualStudio.gitignore + +# User-specific files +*.rsuser +*.suo +*.user +*.userosscache +*.sln.docstates + +# User-specific files (MonoDevelop/Xamarin Studio) +*.userprefs + +# Mono auto generated files +mono_crash.* + +# Build results +[Dd]ebug/ +[Dd]ebugPublic/ +[Rr]elease/ +[Rr]eleases/ +x64/ +x86/ +[Ww][Ii][Nn]32/ +[Aa][Rr][Mm]/ +[Aa][Rr][Mm]64/ +bld/ +[Bb]in/ +[Oo]bj/ +[Ll]og/ +[Ll]ogs/ + +# Visual Studio 2015/2017 cache/options directory +.vs/ +# Uncomment if you have tasks that create the project's static files in wwwroot +#wwwroot/ + +# Visual Studio 2017 auto generated files +Generated\ Files/ + +# MSTest test Results +[Tt]est[Rr]esult*/ +[Bb]uild[Ll]og.* + +# NUnit +*.VisualState.xml +TestResult.xml +nunit-*.xml + +# Build Results of an ATL Project +[Dd]ebugPS/ +[Rr]eleasePS/ +dlldata.c + +# Benchmark Results +BenchmarkDotNet.Artifacts/ + +# .NET Core +project.lock.json +project.fragment.lock.json +artifacts/ + +# ASP.NET Scaffolding +ScaffoldingReadMe.txt + +# StyleCop +StyleCopReport.xml + +# Files built by Visual Studio +*_i.c +*_p.c +*_h.h +*.ilk +*.meta +*.obj +*.iobj +*.pch +*.pdb +*.ipdb +*.pgc +*.pgd +*.rsp +# but not Directory.Build.rsp, as it configures directory-level build defaults +!Directory.Build.rsp +*.sbr +*.tlb +*.tli +*.tlh +*.tmp +*.tmp_proj +*_wpftmp.csproj +*.log +*.tlog +*.vspscc +*.vssscc +.builds +*.pidb +*.svclog +*.scc + +# Chutzpah Test files +_Chutzpah* + +# Visual C++ cache files +ipch/ +*.aps +*.ncb +*.opendb +*.opensdf +*.sdf +*.cachefile +*.VC.db +*.VC.VC.opendb + +# Visual Studio profiler +*.psess +*.vsp +*.vspx +*.sap + +# Visual Studio Trace Files +*.e2e + +# TFS 2012 Local Workspace +$tf/ + +# Guidance Automation Toolkit +*.gpState + +# ReSharper is a .NET coding add-in +_ReSharper*/ +*.[Rr]e[Ss]harper +*.DotSettings.user + +# TeamCity is a build add-in +_TeamCity* + +# DotCover is a Code Coverage Tool +*.dotCover + +# AxoCover is a Code Coverage Tool +.axoCover/* +!.axoCover/settings.json + +# Coverlet is a free, cross platform Code Coverage Tool +coverage*.json +coverage*.xml +coverage*.info + +# Visual Studio code coverage results +*.coverage +*.coveragexml + +# NCrunch +_NCrunch_* +.*crunch*.local.xml +nCrunchTemp_* + +# MightyMoose +*.mm.* +AutoTest.Net/ + +# Web workbench (sass) +.sass-cache/ + +# Installshield output folder +[Ee]xpress/ + +# DocProject is a documentation generator add-in +DocProject/buildhelp/ +DocProject/Help/*.HxT +DocProject/Help/*.HxC +DocProject/Help/*.hhc +DocProject/Help/*.hhk +DocProject/Help/*.hhp +DocProject/Help/Html2 +DocProject/Help/html + +# Click-Once directory +publish/ + +# Publish Web Output +*.[Pp]ublish.xml +*.azurePubxml +# Note: Comment the next line if you want to checkin your web deploy settings, +# but database connection strings (with potential passwords) will be unencrypted +*.pubxml +*.publishproj + +# Microsoft Azure Web App publish settings. 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line = await reader.ReadLineAsync(); + if (line != null) + { + entities.Add(ParseLine(line)); + } + } + + return entities; + } +} \ No newline at end of file diff --git a/AdventOfCode2024/AdventOfCode2024.sln b/AdventOfCode2024/AdventOfCode2024.sln new file mode 100644 index 0000000..7c38e27 --- /dev/null +++ b/AdventOfCode2024/AdventOfCode2024.sln @@ -0,0 +1,22 @@ + +Microsoft Visual Studio Solution File, Format Version 12.00 +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Day1", "Day1\Day1.csproj", "{B3CC14A1-DFE9-4D6B-832E-849968515E74}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AdventOfCode2024.Input", "AdventOfCode2024.Input\AdventOfCode2024.Input.csproj", "{25106B70-A5DC-466A-9A1B-4CA33E2D7FC9}" +EndProject +Global + GlobalSection(SolutionConfigurationPlatforms) = preSolution + Debug|Any CPU = Debug|Any CPU + Release|Any CPU = Release|Any CPU + EndGlobalSection + GlobalSection(ProjectConfigurationPlatforms) = postSolution + {B3CC14A1-DFE9-4D6B-832E-849968515E74}.Debug|Any CPU.ActiveCfg = Debug|Any CPU + {B3CC14A1-DFE9-4D6B-832E-849968515E74}.Debug|Any CPU.Build.0 = Debug|Any CPU + {B3CC14A1-DFE9-4D6B-832E-849968515E74}.Release|Any CPU.ActiveCfg = Release|Any CPU + {B3CC14A1-DFE9-4D6B-832E-849968515E74}.Release|Any CPU.Build.0 = Release|Any CPU + {25106B70-A5DC-466A-9A1B-4CA33E2D7FC9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU + {25106B70-A5DC-466A-9A1B-4CA33E2D7FC9}.Debug|Any CPU.Build.0 = Debug|Any CPU + {25106B70-A5DC-466A-9A1B-4CA33E2D7FC9}.Release|Any CPU.ActiveCfg = Release|Any CPU + {25106B70-A5DC-466A-9A1B-4CA33E2D7FC9}.Release|Any CPU.Build.0 = Release|Any CPU + EndGlobalSection +EndGlobal diff --git a/AdventOfCode2024/Day1/Day1.csproj b/AdventOfCode2024/Day1/Day1.csproj new file mode 100644 index 0000000..5029333 --- /dev/null +++ b/AdventOfCode2024/Day1/Day1.csproj @@ -0,0 +1,28 @@ + + + + Exe + net8.0 + enable + enable + + + + + + + + + input\day1.txt + Always + + + input\day1sample.txt + Always + + + input\_placeholder + + + + diff --git a/AdventOfCode2024/Day1/DayOne.cs b/AdventOfCode2024/Day1/DayOne.cs new file mode 100644 index 0000000..bcb0763 --- /dev/null +++ b/AdventOfCode2024/Day1/DayOne.cs @@ -0,0 +1,70 @@ +namespace Day1; + +// Advent of Code 2024 +// Day 1 +// James Plante (jwplante) + +class DayOne +{ + private static async Task PartOne() + { + await using FileStream inputStream = File.OpenRead("input/day1.txt"); + PairParser parser = new(); + + IList<(int, int)> entries = await parser.ParseAsync(inputStream); + + // Given the parsed entries, add them to two new lists and sort them + List leftList = []; + List rightList = []; + foreach ((int left, int right) in entries) + { + leftList.Add(left); + rightList.Add(right); + } + leftList.Sort(); + rightList.Sort(); + + // Convert back into pairs of (smallest, smallest), (secondSmallest, ... + List<(int, int)> sortedPairs = leftList + .Zip(rightList, (left, right) => (left, right)) + .ToList(); + + long totalDistance = 0; + foreach ((int left, int right) in sortedPairs) + { + var lineDistance = Math.Abs(left - right); + totalDistance += lineDistance; + } + + Console.WriteLine($"Part 1: The total distance of the lines is {totalDistance}."); + } + + private static async Task PartTwo() + { + await using FileStream inputStream = File.OpenRead("input/day1.txt"); + PairParser parser = new(); + + IList<(int, int)> entries = await parser.ParseAsync(inputStream); + + // Get the frequencies for the right list + Dictionary frequencies = []; + foreach ((_, int right) in entries) + { + frequencies[right] = frequencies.GetValueOrDefault(right) + 1; + } + + long similarityScore = 0; + foreach ((int left, _) in entries) + { + var intermediateScore = left * frequencies.GetValueOrDefault(left); + similarityScore += intermediateScore; + } + Console.WriteLine($"Part 2: The total similarity score is {similarityScore}."); + } + + public static async Task Main(string[] args) + { + await PartOne(); + await PartTwo(); + } +} \ No newline at end of file diff --git a/AdventOfCode2024/Day1/PairParser.cs b/AdventOfCode2024/Day1/PairParser.cs new file mode 100644 index 0000000..e59b2ab --- /dev/null +++ b/AdventOfCode2024/Day1/PairParser.cs @@ -0,0 +1,27 @@ +using AdventOfCode2024.Input.Parsers; + +namespace Day1; + +/// +/// Parses a Stream line by line for pairs of integers +/// +public class PairParser : TextLineParser<(int, int)> +{ + protected override (int, int) ParseLine(string line) + { + var pair = line.Split(" ", StringSplitOptions.RemoveEmptyEntries); + if (pair.Length < 2) + { + throw new ArgumentException("Invalid line"); + } + + var entryOneParsed = int.TryParse(pair[0], out var entryOne); + var entryTwoParsed = int.TryParse(pair[1], out var entryTwo); + if (!entryOneParsed || !entryTwoParsed) + { + throw new ArgumentException("Invalid line"); + } + + return (entryOne, entryTwo); + } +} \ No newline at end of file diff --git a/input/_placeholder b/input/_placeholder new file mode 100644 index 0000000..e69de29