Parnic
a522b93f9b
Pretty happy with this one overall. I tripped myself up on part 2 and caused a huge headache by not realizing that I was passing the already-modified array from part 1 into part 2. I left some code to copy the 2d array because that was my original solution (and it's not straightforward to copy jagged arrays), but then realized that the synchronized flash doesn't happen until after step 100 (at least for my input and the demo input) so we can just account for that in part 2 and pick up where part 1 left off.
Advent of Code 2021
My solutions to Advent of Code 2021.