🎄
AdventOfCode2021 Solutions to all 25 AoC 2021 problems in Rust, using less than 100 lines per day, with a total execution time of less than a second
All solutions are quite short and efficient while still being readable and idiomatic. The code emits zero clippy warnings and has a total execution time of about 0.85s
!
See timings.md for execution time and output of each solution.
Thanks again for another amazing year of AoC, especially the subreddit community and of course @ericwastl! Overall, I thought 2021 was one of the best years yet. The difficult was just right. Definitely harder than 2020 I thought but not more than 2019.
Usage
cargo run --release --bin DAY # run a specific day
cargo run --release # run all days
Other years
Leaderboard placings
The puzzles unlock at 06:00
in the morning in my timezone. This is the second year in a row I've set an alarm for 5:50
for 25 days in a row to complete for leaderboard placings (except day 11 when I overslept)!
Went very well this year compared to last year, top 1000 for 18/25
days. Set a new personal best of 153
!