advent-of-code/2020/02/README.md

Day 2

Part 1

Spent some time reading up on how to define a custom instance of Read. Pretty simple otherwise. Surprised countElem isn't in Prelude.

Part 2

Off-by-one errors were called out in the puzzle but I still made them. Solution can be simplified if I don't need to check for out-of-bounds issues. I did this.