Advent of Code is an Advent calendar of small programming puzzles for a variety of skill sets and skill levels that can be solved in any programming language you like. People use them as a speed contest, interview prep, company training, university coursework, practice problems, or to challenge each other.

You don't need a computer science background to participate - just a little programming knowledge and some problem solving skills will get you pretty far. Nor do you need a fancy computer; every problem has a solution that completes in at most 15 seconds on ten-year-old hardware.

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

• UpdatedMay 26, 2025
• Markdown

The Advent of Code template project for Kotlin

• UpdatedNov 29, 2024
• Kotlin

Yearly knowledge sharing event about everything, organized by the WeBuild Community.

• UpdatedDec 30, 2024

Template project for Advent of Code in Elixir.

• UpdatedDec 3, 2024
• Elixir

Python solutions to Advent of Code puzzles,https://adventofcode.com/

• UpdatedDec 27, 2024
• Python

https://adventofcode.com/

• UpdatedDec 23, 2024
• PLpgSQL

Seasonal coding challenges like Advent of Code

• UpdatedDec 4, 2024

adventOfCode(Language.JAVA);

• UpdatedFeb 11, 2025
• Java

My Advent of Code solutions in Python (plus step-by-step explanations)

• UpdatedFeb 16, 2025
• Python

Helper .NET library for solving Advent of Code puzzles

• UpdatedNov 24, 2024
• C#

This repository contains solutions to each of the problems in Advent of Code 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 and 2024 in C++ (and 2020 in Python as well)

• UpdatedDec 29, 2024
• C++

My solutions for Advent of Code AoC 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

• UpdatedMar 4, 2025
• Go

My solutions for AoC 2017, using Nim, OCaml, and Python

• UpdatedNov 29, 2024
• OCaml

This tool gives information about the phone number that you entered.

• UpdatedJun 20, 2023
• Python

Solutions for Advent of Code puzzles. In C, C++, Python, Rust, Golang and PHP. All years.

• UpdatedDec 25, 2024
• C

🎄 Advent of Code 2020: Solutions in Kotlin

• UpdatedDec 25, 2020
• Kotlin

🎄 Advent of Code 2021: Solutions in Kotlin

• UpdatedJan 30, 2022
• Kotlin

My solutions to the advent of code problems!

• UpdatedDec 9, 2022
• Python

My solutions for Advent of Code 2022 in JavaScript

• UpdatedDec 19, 2022
• JavaScript

(Mostly) Elm solutions for Advent of Code

• UpdatedDec 20, 2024
• Elm