# Advent of Code

## Index

-   [2015](2015/README.md) (74% completed)
-   [2016](2016/README.md) (0% completed)
-   [2017](2017/README.md) (0% completed)
-   [2018](2018/README.md) (0% completed)
-   [2019](2019/README.md) (0% completed)
-   [2020](2020/README.md) (16% completed)
-   [2021](2021/README.md) (34% completed)