I just completed "Rucksack Reorganization" - Day 3 - Advent of Code 2022 #AdventOfCode https://adventofcode.com/2022/day/3

Man, these are interesting so far. I did these three in Python, which was convinient here, thanks to the built-in sets. But getting three lines at a time would actually be 30 seconds of consideration faster in C++, so that's that.