2021.md

Awesome Advent of Code

This file contains the archived list of solutions to the 2021 Advent of Code event.

• 2021
  • Solutions
    • Ada
    • APL
    • Assembly
    • AWK
    • Bash
    • BQN
    • C
    • C#
    • C++
    • Clojure
    • Common Lisp
    • Crystal
    • D
    • Dart
    • Elixir
    • Elm
    • Erlang
    • Excel
    • F#
    • Go
    • Groovy
    • Hamler
    • Haskell
    • Haxe
    • HolyC
    • Hoon
    • Idris
    • J
    • Java
    • JavaScript
    • jq
    • Julia
    • Kotlin
    • LDPL
    • Lua
    • MATLAB
    • Nim
    • Objective-C
    • OCaml
    • PHP
    • Perl
    • Pony
    • PowerShell
    • Prolog
    • Python
    • R
    • Racket
    • Raku
    • ReasonML
    • Red
    • REXX
    • Ruby
    • Rust
    • Smalltalk
    • Scala
    • Scheme
    • Solidity
    • SpectX
    • SQL
    • Standard ML
    • Swift
    • TypeScript
      • Deno
    • Unison
    • VB.NET
    • Whitespace
    • Zig
    • Zsh
  • Live Streams

2021

WARNING: All of these likely contain spoilers.

Solutions

Ada

Solutions to AoC in Ada.

APL

Solutions to AoC in APL.

• jayfoad/aoc2021apl
• pitr/aoc
• rak1507/Advent-Of-Code-APL
• technic/AoC2021_APL

Assembly

Solutions to AoC in Assembly.

• shadow578/advent-of-pain-2021

AWK

Solutions to AoC in AWK.

• nusretipek/Advent-of-Code-2021
• ofrank123/AoC2021
• phillbush/aoc

Bash

Solutions to AoC in Bash.

• ColasNahaboo/advent-of-code-my-solutions

BQN

Solutions to AoC in BQN.

• AlexDikelsky/puzzles
• Detegr/aoc2021
• dancek/bqn-advent2021
• dzaima/aoc
• frasiyav/AoC2021
• icen/aoc21
• leahneukirchen/adventofcode2021
• razetime/AOC2021-BQN

C

Solutions to AoC in C.

• Fritz179/aoc-2021
• Jamesbarford/advent-of-code-2021
• breakthatbass/advent_of_code2021
• derpicknicker1/AdventOfCode2021
• federicovilla55/Advent-of-Code
• happycoder74/adventofcode
• jeromkiller/AoC2021
• mustafaquraish/aoc-2021
• sbancuz/aoc-2021
• vierofernando/ansi-adventure

C#

Solutions to AoC in C#.

• BlythMeister/AdventOfCode
• DjordjeNedovic/Advent-of-Code
• Hawk1401/AdventOfCode2021
• ShootMe/AdventOfCode
• Virenbar/AdventOfCode
• akaritakai/AdventOfCode2021-Csharp
• eduherminio/AoC2021
• encse/adventofcode
• flerka/adventofcode-2021
• mMosiur/AdventOfCode2021
• norrbacka/aoc2021
• ntovas/AdventOfCode
• tpetrina/adventofcode
• viceroypenguin/adventofcode
• vladsm/adventofcode-2021-dotnet

C++

Solutions to AoC in C++.

• DichromaticLB/AOC2021
• FilipHusnjak/AdventOfCode-2021
• LMesaric/AoC-2021
• PascalGuenther/AdventOfCode
• RussellDash332/aoc-2021
• TheRealMolen/adventofcode21
• akamayu-ouo/AdventOfCode
• annovo/adventofcode2021
• bg2b/aoc21
• coralkashri/AOC
• lento234/advent2021
• lvrcek/advent-of-code-2021
• m3m0ry/aoc2021
• sultan308/Advent-of-code-2021
• tbeu/AdventOfCode
• vss2sn/advent_of_code

Clojure

Solutions to AoC in Clojure.

• Ventrosky/advent-of-code-2021
• amrittuladhar/adventofcode
• erdos/advent-of-code
• madbence/aoc-21-clj
• slotThe/AOC-2021
• syncd010/AoC2021
• unparalloser/advent-of-code-2021

Common Lisp

Solutions to AoC in Common Lisp.

• VaclavSynacek/advent-of-code
• akagr/aoc-21
• caseneuve/aoc-2021-clisp
• dwclark/advent-of-code-2021
• guojing0/aoc-2021

Crystal

Solutions to AoC in Crystal.

• jazcarate/advent-of-code-2021

D

Solutions to AoC in D.

Dart

Solutions to AoC in Dart.

• S-ecki/AdventOfCode-2021
• dangerground/adventofcode-2021
• julemand101/AdventOfCode2021
• letsar/adventofcode_2021
• timsneath/advent-of-code-2021

Elixir

Solutions to AoC in Elixir.

• MarcusCemes/advent-of-code-2021
• Tyflomate/advent_of_code
• YauHsien/advent-of-code-2021
• ballpointcarrot/advent-of-code-2021
• edwardzhou/advent_code_2021
• maco/advent_of_code
• mathsaey/adventofcode
• memoriesadrift/AoC2021-Elixir
• p88h/aoc2021
• sevenseacat/advent_of_code
• wasi0013/advent_of_code

Elm

Solutions to AoC in Elm and Literate Elm.

• n1k0/elm-advent-2021
• ryanolsonx/aocelm2021

Erlang

Solutions to AoC in Erlang.

• hypothermic/advent-of-code

Excel

Solutions to AoC in Excel.

• Kolsky/AoC-2021-Excel
• detrang1301/adventofcode-2021-excel

F#

Solutions to AoC in F#.

• JanDotNet/AdventOfCode
• Texl/advent-of-code
• ThomasGoetzmann/AdventOfCode2021

Go

Solutions to AoC in Go.

• Alex-Wauters/advent-go-2021
• AndrewSav/adventofcode2021-golang
• BorisLeMeec/adventofcode
• Christheoreo/advent-of-code-2021
• CodeHex/advent-of-code-2021
• Maitgon/Advent2021
• MeanderingProgrammer/advent-of-code
• SwiftPush/advent-of-code-2021
• alokmenghrajani/adventofcode2021
• angristan/advent-of-code-2021
• chigley/advent2021
• codemicro/adventOfCode
• dellink/advent-of-code
• dergeberl/aoc
• devries/advent_of_code_2021
• erik-adelbert/aoc
• flopp/aoc2021
• ga-paul-t/advent-of-code-2021
• hariskhan14/advent-of-code-2021
• hija/aoc-2021
• jsgv/advent-of-code
• jvgrootveld/advent-of-code
• mbalc/advent-of-code-2021-golang
• metalim/adventofcode.2021.go
• nlowe/aoc2021
• nobbs/advent-of-code-in-go
• obalunenko/advent-of-code
• ostcar/aoc2021
• pemoreau/advent-of-code
• pin2t/aoc2021
• pvainio/adventofcode
• ridaamirini/advent-of-code
• shpikat/advent-of-code-2021
• shytikov/advent-of-go
• stscoundrel/advent-of-code-2021

Groovy

Solutions to AoC in Groovy.

• trend-jack-c-tang/advent-of-code-2021

Hamler

Solutions to AoC in Hamler.

Haskell

Solutions to AoC in Haskell.

• 414owen/advent-of-code
• DestyNova/advent_of_code_2021
• RussellDash332/aoc-2021
• SoleneGK/advent-of-code
• TommasoAmici/advent-of-code
• Vince7778/adventofcode2021
• daggy1234/aoc2021
• ephemient/aoc2021
• ggzor/advent-of-code-2021
• glguy/advent2021
• ilyasm0919/AdventOfCode2021
• jitwit/aoc
• oshyshko/adventofcode
• p-kostic/AdventOfCode2021
• prikhi/advent-of-code-2021
• shepherdjerred/advent-of-code-2021
• siraben/haoc-2021
• sonowz/advent-of-code-haskell

Haxe

Solutions to AoC in Haxe.

HolyC

Solutions to AoC in HolyC (TempleOS).

• tsoding/aoc-2021

Hoon

Solutions to AoC in Hoon (Urbit).

• Splined/Advent-of-hoon
• ashelkovnykov/advent-of-hoon-2021
• hanfel-dovned/advent-of-hoon-2021
• taalhavras/advent-of-code-2021
• yosoyubik/advent-of-hoon

Idris

Solutions to AoC in Idris.

J

Solutions to AoC in J.

• jitwit/aoc

Java

Solutions to AoC in Java.

• OmarAssadi/advent-2021
• RussellDash332/aoc-2021
• SimonBaars/AdventOfCode-Java
• Sycix-HK/Advent-of-Code-2021
• akaritakai/AdventOfCode2021
• akbence/adventofcode
• amalagraba/adventofcode-2021
• jerchende/advent-of-code-2021
• jfriemel/Advent-of-Code
• mattjlewis/advent-of-code
• nsirons/programming-puzzles
• pin2t/aoc2021
• pvainio/adventofcode
• tmrd993/advent-of-code-solutions

JavaScript

Solutions to AoC in JavaScript.

• Fritz179/aoc-2021
• JakobMakovac/advent-of-code
• NullDev/Advent-of-Code
• Omay238/advent-of-code
• Pandicon/Advent-of-Code
• Scttpr/Advent-of-Code
• Totto16/AOC-2021
• carpusherw/advent-of-code-2021
• chinesedfan/adventofcode
• eli6/advent-of-code
• janfabian/adventofcode
• jashnniloofar/adventOfCode
• joaomlneto/advent-of-code
• pstachula-dev/advent-of-code
• rkeytacked/adventofcode-2021
• sebastian-raubach/advent-of-code
• shadow578/AdventOfCode2021
• shahata/adventofcode-solver
• thejan14/adventofcode2021
• warriordog/advent-of-code-2021
• xhayper/advent-of-code

jq

Solutions to AoC in jq.

• christianberg/advent

Julia

Solutions to AoC in Julia.

• CmdQ/AoC
• DearRude/advent-of-code
• JakobSachs/aoc21
• LiquidFun/adventofcode
• Praful/advent_of_code
• Teo-ShaoWei/advent-of-code-julia
• goggle/AdventOfCode2021.jl
• iskyd/advent-of-code-julia
• lostella/advent-of-code
• lucifer1004/AoC
• maxwindiff/advent2021
• racinmat/advent_of_code_2021
• tobijkl/advent-of-code

Kotlin

Solutions to AoC in Kotlin.

• 7rebux/advent-of-code-2021
• ArpitShukIa/AdventOfCode2021
• RaphaelTarita/AoC-2021
• The-Self-Taught-Software-Engineer/advent-of-code-2021
• agrison/advent-of-code
• askeron/advent-of-code-kotlin-2021
• csj/advent-of-code-2021
• edgars-supe/advent-of-code
• ephemient/aoc2021
• hughjdavey/aoc-2021
• lucifer1004/AoC
• marc-bouvier-katas/Kotlin_EduTools_Advent_of_Code_2021
• matios13/advent_of_code
• piotrponikowski/AdventOfCode2021
• sanderploegsma/advent-of-code
• sebdehne/advent_of_code
• tchojnacki/advent-of-code
• underwindfall/advent-of-code-2021
• zakmat/AdventOfCode2021

LDPL

Solutions to AoC in LDPL.

Lua

Solutions to AoC in Lua.

• jwise/aoc
• xhayper/advent-of-code

MATLAB

Solutions to AoC in MATLAB (Octave).

• j-a-martins/Advent-of-Code-2021
• ptoshkov/aoc-2021-octave

Nim

Solutions to AoC in Nim.

• AP2008/nim-aoc2021
• Archargelod/aoc21-nim
• codemicro/adventOfCode
• dannyhpy/adventofcode
• vanyle/AdventOfCode

Objective-C

Solutions to AoC in Objective-C.

OCaml

Solutions to AoC in OCaml.

• jamespwilliams/aoc2021

PHP

Solutions to AoC in PHP.

• Lezas/advent-of-code
• arxeiss/advent-of-code-2021
• jeroenheijmans/advent-of-code-2021
• jvancoillie/advent-of-code
• jvwag/advent-of-code
• kirara/advent-of-code
• ridaamirini/advent-of-code
• tbali0524/advent-of-code-solutions
• vuryss/aoc-php

Perl

Solutions to AoC in Perl.

• thomascoe/advent-of-code

Pony

Solutions to AoC in Pony.

Prolog

Solutions to AoC in Prolog.

• AdamGlass/aoc2021
• YauHsien/advent-of-code-2021
• jayhardee9/aoc-2021

PowerShell

Solutions to AoC in PowerShell.

Python

Solutions to AoC in Python.

• AbdeI1/AdventOfCode
• AkaruiYami/AdventOfCode
• Akumatic/Advent-of-Code
• AnandSunderrajan/advent-of-code-2021
• Arrezz/AdventOfCode2021
• DevOFVictory/advent-of-code
• GeertLitjens/advent-of-code-2021
• IanFindlay/advent-of-code
• IsaacG/Advent-of-Code
• James-Ansley/adventofcode
• JohnScolaro/advent-of-code
• KevinL10/advent-of-code
• MasterMedo/aoc
• MonitSharma/Advent-of-Code
• NimVek/advent-of-code
• RussellDash332/aoc-2021
• SwampThingTom/AoC2021
• TechnoTone/AdventOfCode2021
• TomDufall/prog-puzzles
• TurtleSmoke/Advent-of-Code
• Vasile-Hij/AOC-2021
• Widdin/advent-of-code
• adamml/advent-of-code
• advent-of-code.xavd.id
• alihacks/advent-of-code
• alvesvaren/AoC-2021
• aufbakanleitung/advent-of-code
• benediktwerner/AdventOfCode
• blackfisch/adventofcode-2021
• cobanov/advent-of-code
• codemicro/adventOfCode
• daggy1234/aoc2021
• daniel-dara/advent-of-code
• dannyvankooten/advent-of-code
• derailed-dash/Advent-of-Code
• dhimmel/advent-of-code
• dionyziz/advent-of-code
• dplocki/advent-of-code
• ephemient/aoc2021
• ernestoarbitrio/AoC2021
• evaldask/advent-of-code-2021
• filipmlynarski/Advent-of-Code
• fridokus/advent-of-code
• fuglede/adventofcode
• gamma032steam/advent-of-code
• gjanee/advent-of-code-2021
• grigoresc/adventofcode.2021
• happycoder74/adventofcode
• jhrcook/advent-of-code_2021
• jopein/aoc2021
• jromero132/advent-of-code
• k2bd/advent-of-code-python
• kresimir-lukin/AdventOfCode2021
• lostella/advent-of-code
• lucifer1004/AoC
• lukacupic/Advent-Of-Code-2021
• lypnol/adventofcode-2021
• martino-vic/advent
• mathstrains21/Advent-Of-Code
• mebeim/aoc
• merlinscholz/adventofcode-2021
• nhrade/advent-of-code
• nitekat1124/advent-of-code-2021
• noah-kg/AdventOfCode
• novoselov-ab/adventofcode-2021-python
• npanuhin/Advent-of-Code
• orfeasa/advent-of-code-2021
• pranasziaukas/advent-of-code
• prashnts/advent-of-code--2021
• python-b5/advent-of-code-2021
• red-clown/advent-of-code
• redraw/aoc
• roronoasins/adventofcode
• rosscon/rosscon_advent_of_code
• sejaldua/advent-of-code-2021
• smetanin-av/advent-of-code
• taddeus/advent-of-code
• twobiers/AoC-2021
• vil02/adv_2021
• viliampucik/adventofcode
• vlopezferrando/advent-of-code
• w-m/aoc
• xanthoko/Advent-of-Code
• yspreen/adventofcode
• zedrdave/advent_of_code

R

Solutions to AoC in R.

• CharnelMouse/AdventOfCode2021
• KT421/advent-of-code
• Zedseayou/advent_of_code
• bigfarts/aoc2021
• czeildi/advent-of-code
• midoriyama0323/adventofcode2021
• plannapus/Advent_of_Code
• rrrlw/advent-of-code
• tyler-richardett/advent-of-code

Racket

Solutions to AoC in Racket.

• Bogdanp/aoc2021
• bhrgunatha/aoc-2021-racket
• filiplajszczak/advent-of-code-2021
• lojic/LearningRacket
• parry84/aoc2021

Raku

Solutions to AoC in Raku.

• scpchicken/advent-of-code

ReasonML

Solutions to AoC in ReasonML.

Red

Solutions to AoC in Red.

REXX

Solutions to AoC in REXX.

• wizardofzos/aoc2021

Ruby

Solutions to AoC in Ruby.

• damyvv/advent-of-code-2021
• danhealy/advent-of-code-2021
• erikw/advent-of-code-solutions
• narze/advent-of-code-2021
• zsarge/advent-of-code-2021

Rust

Solutions to AoC in Rust.

• JannikNickel/AdventOfCode
• ManevilleF/AdventOfCode2021
• agubelu/Advent-of-Code-2021
• akaritakai/AdventOfCode2021-Rust
• asdrubalinea/aoc
• believer/advent-of-code
• connorslade/advent-of-code
• d-bucur/aoc21-rust
• dominikstanojevic/advent-of-code-2021
• ephemient/aoc2021
• fee1-dead/aoc
• fpalmier/rust-aoc-2021
• fspoettel/advent-of-code-2021
• ga-paul-t/advent-of-code-2021
• hashedone/aoc2021
• jakeledoux/advent
• janreggie/aoc-rs
• jdlambert/advent-of-code-2021
• jkaczmarkiewicz/advent-of-code-answers
• jurisk/advent-of-code
• lmnzx/adventofcode-2021
• lsartory/adventofcode.com
• martwz/adventofcode-2021-rust
• mayjs/advent_of_code_2021
• megatank58/adventofcode
• nickyvanurk/advent-of-code
• ofersadan85/advent_of_code
• pemoreau/advent-of-code
• poyea/aoc-mmxxi
• richardneililagan/adventofcode-2021
• sathwikmatsa/aoc21
• scpchicken/advent-of-code
• sergree/aoc2021
• sigma67/aoc21
• sivertjoe/Advent-of-Code
• stevejb71/rust-advent-of-code-2021
• timvisee/advent-of-code-2021
• tobiges/advent-of-code-2021
• tumdum/aoc2021
• varunmehrishi/AdventOfCode2021
• voidash/AOC2021
• yeurch/advent-of-code
• zargony/advent-of-code-2021
• ziegfried/advent-of-code
• zsacul/AdventOfCode2021

Smalltalk

Solutions to AoC in Smalltalk.

Scala

Solutions to AoC in Scala.

• 2m/adventofcode2021
• FlorianCassayre/AdventOfCode-2021
• fdlk/advent-2021
• ggzor/advent-of-code-2021
• gnmathur/AdventOfCode
• maneatingape/advent-of-code-scala
• matelaszlo/advent-of-code-scala
• mzielinski/advent-of-code-2021
• sim642/adventofcode
• williamhaw/advent-of-code-2021

Scheme

Solutions to AoC in Scheme.

• AiziChen/advent-of-code
• jitwit/aoc

Solidity

Solutions to AoC in Solidity.

• ethsgo/aoc

SpectX

Solutions to AoC in SpectX.

SQL

Solutions to AoC in SQL.

• alihacks/advent-of-code

Standard ML

Solutions to AoC in Standard ML.

• qweeze/adventofcode

Swift

Solutions to AoC in Swift.

• Frugghi/Advent-of-Code-2021
• bence-t0th/Advent-of-Code-2021
• bhargavg/AdventOfCode
• davedelong/AOC
• fguchelaar/AdventOfCode2021
• gereons/AoC2021
• onevcat/advent2021
• scottluxenberg/AdventOfCode2021

TypeScript

Solutions to AoC in TypeScript.

• Charlesworth/adventOfCode2021
• DarthGandalf/advent-of-code
• Wodorek/advent-of-code-JS
• atme/advent-of-code-2021
• caderek/aoc2021
• fstreicher/advent-of-code
• marcobiedermann/advent-of-code
• pierreyoda/advent-2021-svelte
• radoslawgrochowski/advent-of-code-2021
• sanraith/aoc2021
• vbmaarten/AoC2021

Deno

Solutions to AoC in Deno (TypeScript).

• Im-Beast/advent_of_code
• LionC/aoc-2021
• N8Brooks/deno_aoc
• ismtabo/advent-of-code-2021

Unison

Solutions to AoC in Unison.

VB.NET

Solutions to AoC in VB.NET.

Whitespace

Solutions to AoC in Whitespace.

• thaliaarchi/ws-challenges

Zig

Solutions to AoC in Zig.

• DearRude/advent-of-code
• jwarwick/aoc_2021
• scorphus/advent-of-code-2021

Zsh

Solutions to AoC in Zsh.

• pseyfert/advent-of-code-2021

Live Streams

Folks who are live streaming their process.

• Aufbakanleitung