Advent of Code 2023 - Day 13
I placed 20th on part 1; 4th on part 2; now 5th overall.
I had an off-by-1 bug in part 1 (I wasn't checking for symmetry after the first row/column).
Problem: https://adventofcode.com/2023/day/13
Solution: https://github.com/jonathanpaulson/Ad...