# [Advent of Code] > 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. [advent of code]: https://adventofcode.com/about ## Years 1. [2015] 1. 2016 1. 2017 1. 2018 1. 2019 1. [2020] 1. [2021] [2015]: ./2015 [2020]: ./2020 [2021]: ./2021