# [Advent of Code 2015](https://adventofcode.com/2015)

## Progress

| Day | Part 1 | Part 2 | Language |
| :-: | :----: | :----: | :------- |
| 01  |   ✓    |   ✓    | Ruby     |
| 02  |   ✓    |   ✓    | Ruby     |
| 03  |   ✓    |   ✓    | Ruby     |
| 04  |   ✓    |   ✓    | Rust     |
| 05  |   ✓    |   ✓    | Ruby     |
| 06  |   ✓    |   ✓    | Ruby     |
| 07  |   ✓    |   ✓    | Rust     |
| 08  |   ✓    |   ✓    | Ruby     |
| 09  |   ✓    |   ✓    | Rust     |
| 10  |   ✓    |   ✓    | Ruby     |
| 11  |   ✓    |   ✓    | Ruby     |
| 12  |   ✓    |   ✓    | Ruby     |
| 13  |   ✓    |   ✓    | Ruby     |
| 14  |   ✓    |   ✓    | Ruby     |
| 15  |   ✓    |   ✓    | Ruby     |
| 16  |   ✓    |   ✓    | Ruby     |
| 17  |   ✓    |   ✓    | Ruby     |
| 18  |   ✓    |   ✓    | Ruby     |
| 19  |   ✓    |        | Ruby     |
| 20  |        |        |          |
| 21  |        |        |          |
| 22  |        |        |          |
| 23  |        |        |          |
| 24  |        |        |          |
| 25  |        |        |          |

## Additional Challenges

-   Only use the standard library the language provides