advent of code 2021

strlst 4367a77242 trying something out with go 1 周之前
2020 4367a77242 trying something out with go 1 周之前
2021 8062763d18 day 22 2 年之前
2022 201640223e new year, new time sink 11 月之前
2023 421b6a94dd day 20 almost solved 11 月之前