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GitHub topics: advent-of-code-2021

Basje/advent-of-code

My attempt at solving the Advent of Code puzzles

Language: C# - Size: 408 KB - Last synced at: about 1 hour ago - Pushed at: about 20 hours ago - Stars: 5 - Forks: 0

derailed-dash/advent-of-code

Advent of Code problems solved in Python.

Language: Jupyter Notebook - Size: 108 MB - Last synced at: about 15 hours ago - Pushed at: about 20 hours ago - Stars: 74 - Forks: 9

xiety/AdventOfCode

Advent of Code puzzles in C#

Language: C# - Size: 568 KB - Last synced at: 1 day ago - Pushed at: 2 days ago - Stars: 2 - Forks: 0

GeorgeSG/advent-of-code

Advent of code solutions

Language: TypeScript - Size: 348 KB - Last synced at: 1 day ago - Pushed at: 3 days ago - Stars: 1 - Forks: 0

shahata/adventofcode-solver

πŸŽ„ Advent of Code (2015-2025) in JavaScript

Language: JavaScript - Size: 19 MB - Last synced at: 1 day ago - Pushed at: 3 days ago - Stars: 46 - Forks: 8

rclim95/AdventOfCode

(Attempted) solutions for Advent of Code (https://www.adventofcode.com/)

Language: C# - Size: 241 KB - Last synced at: about 23 hours ago - Pushed at: 3 days ago - Stars: 0 - Forks: 1

GrigoryanArtem/advent-of-code

Solutions to the Advent of Code problems

Language: C# - Size: 251 KB - Last synced at: 3 days ago - Pushed at: 3 days ago - Stars: 6 - Forks: 0

psmeireles/advent-of-code

Solutions for Advent of Code

Language: C++ - Size: 295 KB - Last synced at: 1 day ago - Pushed at: 3 days ago - Stars: 1 - Forks: 0

Mishco/adventofcode

Advent of Code solutions written in Python and Rust

Language: Rust - Size: 274 KB - Last synced at: 2 days ago - Pushed at: 4 days ago - Stars: 0 - Forks: 0

owenjones/advent-of-code

My solutions for Advent of Code

Language: C - Size: 4.15 MB - Last synced at: 2 days ago - Pushed at: 4 days ago - Stars: 0 - Forks: 0

LuisGC/advent-of-code

My coding solutions for https://adventofcode.com/

Language: Python - Size: 809 KB - Last synced at: 1 day ago - Pushed at: 4 days ago - Stars: 7 - Forks: 0

xunoaib/adventofcode

Advent of Code Solutions

Language: Python - Size: 2.66 MB - Last synced at: 4 days ago - Pushed at: 4 days ago - Stars: 1 - Forks: 0

NullDev/Advent-of-Code

:christmas_tree: My solutions for the Advent of Code in NodeJS

Language: JavaScript - Size: 1.57 MB - Last synced at: 1 day ago - Pushed at: 4 days ago - Stars: 13 - Forks: 5

hrmorley34/AdventofCode

My attempts at Advent of Code

Language: Python - Size: 366 KB - Last synced at: 2 days ago - Pushed at: 5 days ago - Stars: 0 - Forks: 0

Delni/advent-of-code

Advent of Code solvers. One year = one language !

Language: Kotlin - Size: 718 KB - Last synced at: 2 days ago - Pushed at: 5 days ago - Stars: 1 - Forks: 0

LucyIvatt/advent-of-code

πŸŽ„ Solutions for Advent of Code - an annual set of Christmas-themed programming challenges that follow an Advent calendar.

Language: Python - Size: 561 KB - Last synced at: 2 days ago - Pushed at: 5 days ago - Stars: 0 - Forks: 0

Simonolsson98/AdventOfCode

learning python and go with Advent of Code, the time complexity of some solutions might be questionable

Language: Python - Size: 2.44 MB - Last synced at: 3 days ago - Pushed at: 5 days ago - Stars: 0 - Forks: 0

rene-d/advent-of-rust

solutions of https://adventofcode.com/ in Rust and Python

Language: Rust - Size: 19 MB - Last synced at: 3 days ago - Pushed at: 6 days ago - Stars: 12 - Forks: 0

ketantailor/AdventOfCode

My solutions for the Advent of Code challenge.

Language: C# - Size: 127 KB - Last synced at: 3 days ago - Pushed at: 6 days ago - Stars: 1 - Forks: 0

dieseltravis/aoc2021

javascript πŸŽ„ Advent of Code 2021 using 🎏 Glitch 🎏

Language: JavaScript - Size: 858 KB - Last synced at: 3 days ago - Pushed at: 6 days ago - Stars: 2 - Forks: 2

tlarsen0/adventofcode

Solutions for the Advent of Code.

Language: Kotlin - Size: 456 KB - Last synced at: 3 days ago - Pushed at: 6 days ago - Stars: 4 - Forks: 1

vil02/adv_2021

Python solutions of Advent of Code 2021

Language: Python - Size: 727 KB - Last synced at: 4 days ago - Pushed at: 5 days ago - Stars: 0 - Forks: 0

stoman/CompetitiveProgramming

A collection of some competitive programming problems I solved or created.

Language: C - Size: 77 MB - Last synced at: 4 days ago - Pushed at: 7 days ago - Stars: 3 - Forks: 1

wiidotmom/aoc

πŸŽ„ advent of code in typescript

Language: TypeScript - Size: 554 KB - Last synced at: 4 days ago - Pushed at: 7 days ago - Stars: 0 - Forks: 0

cicaleseandrea/advent-of-code

πŸŽ„ My Advent of Code solutions πŸŽ…

Language: Java - Size: 3.67 MB - Last synced at: 4 days ago - Pushed at: 8 days ago - Stars: 2 - Forks: 0

Bogdanp/awesome-advent-of-code

A collection of awesome resources related to the yearly Advent of Code challenge.

Language: Markdown - Size: 5.51 MB - Last synced at: 8 days ago - Pushed at: 8 days ago - Stars: 3,156 - Forks: 947

khayyamsaleem/advent-of-code

advent of code, code challenges throughout december

Language: Rust - Size: 3.92 MB - Last synced at: 8 days ago - Pushed at: 8 days ago - Stars: 4 - Forks: 0

asdrubalinea/aoc

Advent of Code

Language: Rust - Size: 1.27 MB - Last synced at: 9 days ago - Pushed at: 9 days ago - Stars: 0 - Forks: 0

monkeynova/advent-of-code

A place to work on personal attempts for https://adventofcode.com/

Language: C++ - Size: 5.67 MB - Last synced at: 9 days ago - Pushed at: 9 days ago - Stars: 0 - Forks: 0

rbruinier/AdventOfCode

Solutions for years 2015 to 2024

Language: Swift - Size: 1.72 MB - Last synced at: 10 days ago - Pushed at: 10 days ago - Stars: 3 - Forks: 0

JamesMcGaa/AdventOfCodeAll

All years of Advent of Code - generally in Kotlin

Language: Kotlin - Size: 25.5 MB - Last synced at: 10 days ago - Pushed at: 10 days ago - Stars: 3 - Forks: 0

kjellivar/advent-of-code

Advent of code solutions in javascript

Language: JavaScript - Size: 593 KB - Last synced at: 2 days ago - Pushed at: 2 days ago - Stars: 0 - Forks: 0

scalacenter/scala-advent-of-code

Scala Center's solution of Advent of Code

Language: Scala - Size: 123 MB - Last synced at: 11 days ago - Pushed at: 11 days ago - Stars: 63 - Forks: 86

hectcastro/aoc

Solutions for Advent of Code.

Language: Python - Size: 545 KB - Last synced at: 11 days ago - Pushed at: 11 days ago - Stars: 0 - Forks: 0

sim642/adventofcode

Advent of Code solutions of 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 and 2025 in Scala

Language: Scala - Size: 2.64 MB - Last synced at: 11 days ago - Pushed at: 11 days ago - Stars: 68 - Forks: 4

xiel/advent-of-code

my solutions to AoC πŸŽ„

Language: TypeScript - Size: 12.8 MB - Last synced at: 11 days ago - Pushed at: 11 days ago - Stars: 3 - Forks: 1

ZoltePudeleczko/AdventofCode

My πŸŽ„ Advent of Code πŸŽ„ solutions, read at your own risk :smile:

Language: Python - Size: 3.24 MB - Last synced at: 12 days ago - Pushed at: 12 days ago - Stars: 2 - Forks: 0

Janiczek/advent-of-code

(Mostly) Elm solutions for Advent of Code

Language: Elm - Size: 1.57 MB - Last synced at: 12 days ago - Pushed at: 12 days ago - Stars: 32 - Forks: 3

adriang314/AdventOfCodeKotlin

Language: Kotlin - Size: 1.26 MB - Last synced at: 13 days ago - Pushed at: 13 days ago - Stars: 0 - Forks: 0

MeanderingProgrammer/advent-of-code

Advent of Code - All Years - Blazingly Fast

Language: Rust - Size: 5.77 MB - Last synced at: 13 days ago - Pushed at: 13 days ago - Stars: 12 - Forks: 2

kufii/advent-of-code-2021

My solutions for Advent of Code 2021

Language: TypeScript - Size: 25.4 MB - Last synced at: 10 days ago - Pushed at: almost 4 years ago - Stars: 0 - Forks: 0

eduherminio/AdventOfCode.Template

Advent of Code C# (.NET 9) template. Based on AoCHelper (https://github.com/eduherminio/AoCHelper)

Language: C# - Size: 19.5 KB - Last synced at: 15 days ago - Pushed at: 15 days ago - Stars: 45 - Forks: 23

ricardoholmes/advent-of-code

Language: Rust - Size: 2.04 MB - Last synced at: 16 days ago - Pushed at: 17 days ago - Stars: 2 - Forks: 0

Lorin-Lange/advent-of-code

πŸ¦ŒπŸŽ…πŸ»β›„πŸŽ Advent of Code (AoC) β˜ƒοΈβ„οΈπŸ€ΆπŸŽ„ solutions by Lorin Lange.

Language: Haskell - Size: 1.79 MB - Last synced at: 18 days ago - Pushed at: 18 days ago - Stars: 1 - Forks: 0

LordAro/AdventOfCode

Some Advent of Code solutions

Language: Rust - Size: 717 KB - Last synced at: 18 days ago - Pushed at: 18 days ago - Stars: 2 - Forks: 0

jonasrenault/advent

Repository for my code for Advent of code

Language: Python - Size: 271 KB - Last synced at: 19 days ago - Pushed at: 19 days ago - Stars: 0 - Forks: 0

aibor/aoc

Advent of Code puzzles

Language: Go - Size: 374 KB - Last synced at: 20 days ago - Pushed at: 20 days ago - Stars: 0 - Forks: 0

obalunenko/advent-of-code

This repository contains solutions for Advent Of Code puzzles and cli tool to run solutions to get answers for input on site.

Language: Go - Size: 21.3 MB - Last synced at: 20 days ago - Pushed at: 20 days ago - Stars: 9 - Forks: 3

lcvisser/adventofcode

My attempts at solving the Advent Of Code puzzles (www.adventofcode.com)

Language: Python - Size: 429 KB - Last synced at: 21 days ago - Pushed at: 23 days ago - Stars: 0 - Forks: 1

Piwimau/Advent-of-Code-2021

πŸŽ„ Solutions for Advent of Code 2021 in C#. πŸŽ„

Language: C# - Size: 385 KB - Last synced at: 24 days ago - Pushed at: 24 days ago - Stars: 0 - Forks: 0

EdricChan03/advent-of-code

Advent Of Code solutions written in Kotlin

Language: Kotlin - Size: 752 KB - Last synced at: 25 days ago - Pushed at: 25 days ago - Stars: 1 - Forks: 0

pBouillon/advent-of-code

πŸŽ„ My C# solutions for the advent of code puzzles (2015-2022)

Language: C# - Size: 301 KB - Last synced at: 25 days ago - Pushed at: 25 days ago - Stars: 1 - Forks: 0

cpl/advent-of-code

Advent of code

Language: Go - Size: 325 KB - Last synced at: 27 days ago - Pushed at: 27 days ago - Stars: 1 - Forks: 0

andilau/advent-of-code-2021

πŸŽ„ Advent of Code 2021: Solutions in Kotlin

Language: Kotlin - Size: 536 KB - Last synced at: 27 days ago - Pushed at: 28 days ago - Stars: 0 - Forks: 0

narimiran/AdventOfCode2021

My solutions for AoC 2021

Language: Clojure - Size: 128 KB - Last synced at: 16 days ago - Pushed at: 28 days ago - Stars: 14 - Forks: 2

budavariam/advent_of_code

My attempts to solve the riddles of Advent of Code

Language: Python - Size: 542 KB - Last synced at: 28 days ago - Pushed at: 28 days ago - Stars: 1 - Forks: 1

Pascal-So/aoc_rust

Rust-noob does Advent of Code

Language: Rust - Size: 224 KB - Last synced at: 30 days ago - Pushed at: 30 days ago - Stars: 0 - Forks: 0

yurrriq/advent-of-code

Semi-literate polyglot solutions to Advent of Code problems.

Language: Haskell - Size: 2.46 MB - Last synced at: 1 day ago - Pushed at: 2 days ago - Stars: 5 - Forks: 1

believer/advent-of-code

Advent of Code in Rust, ReScript, ReasonML, Go, TypeScript, and Python

Language: Rust - Size: 2.76 MB - Last synced at: 30 days ago - Pushed at: 30 days ago - Stars: 53 - Forks: 3

Trikzon/advent-of-code

My Advent of Code solutions. https://adventofcode.com/

Language: Kotlin - Size: 103 KB - Last synced at: about 1 month ago - Pushed at: about 1 month ago - Stars: 0 - Forks: 1

Deivmercer/advent-of-code

Language: Python - Size: 256 KB - Last synced at: about 1 month ago - Pushed at: about 1 month ago - Stars: 0 - Forks: 0

eratio08/advent-of-code

yearly Advent of Coden solution attempts

Language: OCaml - Size: 164 KB - Last synced at: about 1 month ago - Pushed at: about 1 month ago - Stars: 1 - Forks: 0

maneatingape/advent-of-code-rust

Blazing fast Rust solutions for every Advent of Code puzzle from 2015 to 2024, solving 500 stars in less than 1 second.

Language: Rust - Size: 1.93 MB - Last synced at: about 1 month ago - Pushed at: about 1 month ago - Stars: 351 - Forks: 20

SOBEX/AdventOfCode

Language: Odin - Size: 143 KB - Last synced at: about 1 month ago - Pushed at: about 1 month ago - Stars: 0 - Forks: 0

hildenost/advent-of-code

My (mostly) python solutions to Advent of Code

Language: Python - Size: 788 KB - Last synced at: about 1 month ago - Pushed at: about 1 month ago - Stars: 2 - Forks: 0

tkareine/advent-of-code-2021

My solutions to Advent of Code 2021

Language: Rust - Size: 84 KB - Last synced at: about 1 month ago - Pushed at: about 1 month ago - Stars: 0 - Forks: 0

J0B10/aoc-badges-action

Github Action to update the badges of your Readme to show your current Advent of Code stats

Language: Python - Size: 40 KB - Last synced at: about 1 month ago - Pushed at: almost 2 years ago - Stars: 127 - Forks: 12

hunkyjimpjorps/AdventOfCode

A compilation of my Advent of Code solutions.

Language: Racket - Size: 9.09 MB - Last synced at: about 1 month ago - Pushed at: about 1 month ago - Stars: 3 - Forks: 0

WesselM/advent-of-code

Advent of Code solutions

Language: Python - Size: 197 KB - Last synced at: about 1 month ago - Pushed at: about 1 month ago - Stars: 0 - Forks: 0

code-shoily/advent_of_code

Advent of Codes with Elixir [2015 ~ 2023]

Language: Elixir - Size: 1.86 MB - Last synced at: about 1 month ago - Pushed at: about 1 month ago - Stars: 27 - Forks: 4

alex391/badventofcode

My bad adventofcode.com solutions.

Language: Rust - Size: 5.22 MB - Last synced at: about 1 month ago - Pushed at: about 1 month ago - Stars: 0 - Forks: 0

difuria/Advent-Of-Code

Advent of code challanges

Language: Python - Size: 1010 KB - Last synced at: about 1 month ago - Pushed at: about 1 month ago - Stars: 1 - Forks: 0

see-quick/AdventOfCode

Language: Java - Size: 437 KB - Last synced at: about 1 month ago - Pushed at: about 2 months ago - Stars: 1 - Forks: 0

viceroypenguin/adventofcode

Answers to Advent of Code

Language: C# - Size: 1.14 MB - Last synced at: about 1 month ago - Pushed at: about 2 months ago - Stars: 39 - Forks: 2

SwitchArio/advent-of-code

My solutions to Advent of Code puzzles

Language: Python - Size: 109 KB - Last synced at: about 2 months ago - Pushed at: about 2 months ago - Stars: 0 - Forks: 0

yarrick/advent

Adventofcode.com solutions in haskell. All years complete (2015-2024)

Language: Haskell - Size: 429 KB - Last synced at: about 2 months ago - Pushed at: about 2 months ago - Stars: 6 - Forks: 0

odnoletkov/advent-of-code-jq

Solving Advent of Code with jq

Language: jq - Size: 173 KB - Last synced at: about 2 months ago - Pushed at: 12 months ago - Stars: 220 - Forks: 3

wfleming/advent-of-code

My Advent of Code solutions

Language: Ruby - Size: 3.34 MB - Last synced at: about 2 months ago - Pushed at: about 2 months ago - Stars: 2 - Forks: 0

SimonBaars/AdventOfCode-Java

adventOfCode(Language.JAVA);

Language: Java - Size: 2.18 MB - Last synced at: 8 days ago - Pushed at: 10 months ago - Stars: 74 - Forks: 20

damiendart/adventofcode

My solutions to the Advent of Code. (Read-only mirror.)

Language: Go - Size: 35.2 KB - Last synced at: about 2 months ago - Pushed at: about 2 months ago - Stars: 1 - Forks: 0

gustavkj/advent-of-code

My Advent of Code solutions

Language: TypeScript - Size: 1.43 MB - Last synced at: 20 days ago - Pushed at: 20 days ago - Stars: 1 - Forks: 1

d-bucur/aoc21-rust

Advent of Code 2021 in Rust

Language: Rust - Size: 128 KB - Last synced at: 2 days ago - Pushed at: about 3 years ago - Stars: 0 - Forks: 0

jzimbel/adventofcode-elixir

Elixir Solutions and Utilities for Advent of Code puzzles

Language: Elixir - Size: 321 KB - Last synced at: about 2 months ago - Pushed at: 5 months ago - Stars: 11 - Forks: 1

rrrlw/advent-of-code

Solutions for annual Advent of Code challenge hosted at http://www.adventofcode.com/.

Language: R - Size: 59.6 KB - Last synced at: about 2 months ago - Pushed at: 2 months ago - Stars: 4 - Forks: 0

sunilsch/Advent-Of-Code

My solutions for Advent of Code

Language: Python - Size: 83 KB - Last synced at: 2 months ago - Pushed at: 2 months ago - Stars: 0 - Forks: 0

jromero132/advent-of-code

All my Advent of Code solutions. Also a CLI tool for managing and testing Advent of Code challenges.

Language: Python - Size: 2.47 MB - Last synced at: about 1 month ago - Pushed at: 2 months ago - Stars: 10 - Forks: 1

devcordde/adventofcode-21 πŸ“¦

AdventOfCode 2021 solutions from the Devcord server

Language: Python - Size: 129 KB - Last synced at: 2 months ago - Pushed at: 2 months ago - Stars: 13 - Forks: 11

kvan1231/Advent_of_code

My attempts at the Advent of Code

Language: Python - Size: 477 KB - Last synced at: 2 months ago - Pushed at: 2 months ago - Stars: 1 - Forks: 0

iomonad/advent-of-code-2021

My take of Advent of Code 2021 session, in full Clojure.

Language: Clojure - Size: 65.4 KB - Last synced at: 20 days ago - Pushed at: almost 4 years ago - Stars: 1 - Forks: 0

IronBlood/AoC-js

Solutions for advent of code, 2015-2024

Language: JavaScript - Size: 588 KB - Last synced at: 2 months ago - Pushed at: 2 months ago - Stars: 0 - Forks: 0

xPaw/adventofcode-solutions

πŸŽ„ My solutions to https://adventofcode.com/

Language: C# - Size: 377 KB - Last synced at: about 2 months ago - Pushed at: 11 months ago - Stars: 25 - Forks: 7

charon25/AdventOfCode

My solutions to the Advent of Code puzzles over the years.

Language: Java - Size: 485 KB - Last synced at: 2 months ago - Pushed at: 2 months ago - Stars: 0 - Forks: 0

creideiki/adventofcode2021 πŸ“¦

My solutions to the 2021 Advent of Code problems, first written in Ruby and then translated to Python.

Size: 162 KB - Last synced at: 2 months ago - Pushed at: 2 months ago - Stars: 0 - Forks: 0

sanderploegsma/advent-of-code

πŸŽ„ Solutions to Advent of Code challenges

Language: C# - Size: 1.81 MB - Last synced at: 2 months ago - Pushed at: 2 months ago - Stars: 6 - Forks: 0

Kezzryn/Advent-of-Code

Advent of Code solutions

Language: C# - Size: 5.16 MB - Last synced at: 3 months ago - Pushed at: 3 months ago - Stars: 8 - Forks: 1

zuzOup/Advent-of-code

My solutions to the https://adventofcode.com/ puzzles - in JavaScript.

Language: JavaScript - Size: 167 KB - Last synced at: 3 months ago - Pushed at: 3 months ago - Stars: 0 - Forks: 0

alokmenghrajani/adventofcode2021

Advent Of Code 2021 solution in Go β˜ƒοΈπŸŽ„πŸŽπŸ¦ŒπŸŽ…

Language: Go - Size: 216 KB - Last synced at: 3 months ago - Pushed at: 3 months ago - Stars: 1 - Forks: 0

ChewbaccaCookie/advent-of-code

Advent of code task solutions

Language: Go - Size: 1.93 MB - Last synced at: 3 months ago - Pushed at: 3 months ago - Stars: 0 - Forks: 0

michaeltroger/advent-of-code-2021-in-kotlin

Advent of Code 2021 in Kotlin, solved by myself. Focus on code readability. With GitHub Actions all puzzles are executed and their solutions printed

Language: Kotlin - Size: 169 KB - Last synced at: 3 months ago - Pushed at: 3 months ago - Stars: 1 - Forks: 0

ridaamirini/advent-of-code-template

A simple php template for Advent of Code with a utility function to handle inputs. It can be used for every language.

Language: PHP - Size: 21.5 KB - Last synced at: 3 months ago - Pushed at: 3 months ago - Stars: 1 - Forks: 1

Related Keywords
advent-of-code 797 advent-of-code-2020 255 advent-of-code-2022 250 advent-of-code-2019 169 advent-of-code-2023 154 aoc 144 adventofcode 143 advent-of-code-2018 135 aoc2021 129 python 120 advent-of-code-2015 119 advent-of-code-2017 117 advent-of-code-2024 98 advent-of-code-2016 94 rust 84 aoc-2021-in-kotlin 64 kotlin 56 adventofcode2021 50 python3 40 go 38 javascript 37 golang 36 aoc-2021 35 typescript 33 haskell 31 java 31 advent-of-code-2021-python 30 advent-of-code-2021-rust 27 advent-of-code-python 22 cpp 21 elixir 19 aoc2020 19 aoc2022 19 clojure 16 swift 15 advent-of-code-rust 15 solutions 15 vanilla-javascript 14 ruby 14 rust-lang 13 challenge 13 aoc-2022-in-kotlin 13 csharp 13 advent 12 scala 12 advent-of-code-javascript 11 advent-of-code-2021-kotlin 11 algorithms 11 aoc2019 11 advent-of-code-2021-javascript 10 puzzles 10 c 9 aoc-2023-in-kotlin 9 adventofcode2020 9 fsharp 9 advent-of-code-2021-go 9 ocaml 9 competitive-programming 8 nodejs 8 advent-of-code-2025 8 christmas 8 adventofcode2022 7 zig 7 bqn 7 julia 7 advent-of-code-2022-javascript 7 coding-challenge 7 ada 7 advent-of-code-2022-rust 7 aoc2023 7 advent-of-code-2021-haskell 6 dotnet 6 advent-of-code-2021-clojure 6 adventofcode2017 6 nim 6 advent-of-code-2021-java 6 advent-of-code-cpp 6 adventofcode2019 6 puzzle 6 adventofcode2015 6 aoc-2024-in-kotlin 6 advent-of-code-csharp 6 bash 5 adventofcode2016 5 adventjs 5 adventofcode2018 5 problem-solving 5 advent-of-code-haskell 5 advent-of-code-java 5 advent-of-code-2024-python 5 advent-of-code-kotlin 5 advent-of-code-2020-rust 5 lua 5 aoc-2021-in-python 5 challenges 5 advent-of-code-2023-rust 5 kata 4 aoc2021js 4 programming-challenges 4 cpp17 4