2019 Leaderboard: https://adventofcode.com/2019/leaderboard/private/view/376921
2020 Leaderboard: https://adventofcode.com/2020/leaderboard/private/view/376921
2021 Leaderboard: https://adventofcode.com/2021/leaderboard/private/view/376921
2022 Leaderboard: https://adventofcode.com/2022/leaderboard/private/view/376921
2023 Leaderboard: https://adventofcode.com/2023/leaderboard/private/view/376921