# advent_of_code_2021

### DAY 1

- [part1](01/part1.php)
- [part2](01/part2.php)

### DAY 2

- [part1](02/part1.php)
- [part2](02/part2.php)

### DAY 3

- [part1](03/part1.php)
- [part2](03/part2.php)

### DAY 4

- [part1](04/part1.php)
- [part2](04/part2.php)