# Ryan Thompson

## Week 290 Solutions

### Task 1 › Double Exist

 * [Perl](perl/ch-1.pl)

### Task 2 › Luhn's Algorithm

 * [Perl](perl/ch-2.pl)

## Blog

 * [Seeing Double, Twice!](https://ry.ca/2024/10/pwc-290-seeing-double-twice/)