AdventOfCode2020
aoc2021
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AdventOfCode2020 | aoc2021 | |
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23 | 32 | |
29 | 26 | |
- | - | |
2.6 | 0.0 | |
3 months ago | about 1 year ago | |
Rust | Kotlin | |
MIT License | - |
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AdventOfCode2020
- Aoe2 datasets
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Zig seems great but it is still in its infancy.
I learned Zig first from the official guide at https://ziglang.org/learn/getting-started/, then from https://ziglearn.org/. I also used Zig to go through https://adventofcode.com/2020, which more about solving given tasks. At certain point you will be ready to read source code of Zig's std library in place for documentation.
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[2021 Day 1-25][Rust] Solutions to all of this year's problems in terse and clean Rust
2020 in Rust
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-🎄- 2021 Day 23 Solutions -🎄-
Link to full solution
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-🎄- 2021 Day 19 Solutions -🎄-
Phew, almost 2 hours of intense coding. This was an incredibly difficult day. Got flashbacks to day 20 of last year.
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Advent of Code (AoC) Day One
This is the seventh year puzzles, if you want to check out previous years take a look at: 2015, 2016, 2017, 2018, 2019, 2020
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Advent of Code 2021
It actually was on day 19, it's just that puzzle #13 was the 19th puzzle given out [1]. I'm not sure why the numbers didn't come in order last year.
[1]: https://adventofcode.com/2020 shows the number order
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It's been 20 days since I started learning rust as my first language. Terrible experience. Should I move forward?
I find that the "advent of code" project always has some nice challenges and you can access the previous years like https://adventofcode.com/2020. They tend to get complex and/or complicated quickly, but usually the first few are easy enogh, while sill giving you a challenge to learn something new.
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What do you think is the best way to learn Rust?
https://adventofcode.com/2020 gives you well defined, deterministic problems that can be solved in a variety of ways. I'm loving it.
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[2020 Day 9] Part 2 - What is the most efficient algorithm?
One important thing to note is that all numbers in the input are positive. Since they are all positive it can be solved quite easily in linear time, O(n), and O(1) memory complexity. See algorithm here. I used this algorithm in my Rust solution.
aoc2021
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All years, all days, everything in Haskell
I've done every year in Haskell (2015 2016 2017 2018 2019 2020 2021), and so have several other people such as /u/glguy. I don't see if /u/mstksg has anything published for 2015 but they've done 2016 2017 2018 2019 2020 2021 along with some pretty good writeups, I recommend checking those out.
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Jetbrains looks like it's about to release Compose ui for ios, and web!
I ran my own benchmarks for a whole ton of code at https://github.com/ephemient/aoc2021 on both Linux x64 and macos x64, and ended up disabling Kotlin/Native because it was varying between 10x and 100x slower than Kotlin/JVM, eventually timing out on CI. The generated code may be reasonable thanks to LLVM, but the runtime certainly is not.
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-🎄- 2021 Day 25 Solutions -🎄-
Took a while for me to get around to completing this in Kotlin, Python, and Rust as well, since I was working on optimizing other solutions, but I finally made it.
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-🎄- 2021 Day 24 Solutions -🎄-
So I switched tacks and implemented this in Kotlin, where mutation is easier. First version was brute-force with duplicate state avoidance (checked before the state explosion at every input), which worked quickly enough for part 1, but ran into OOMs for part 2. Once I replaced the HashSet with a custom LruSet (and later a simpler CacheSet which simply overwrites on hash collisions) it ran part 2 in a few minutes. I then ported this into Haskell.
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-🎄- 2021 Day 23 Solutions -🎄-
Haskell 1171/339
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-🎄- 2021 Day 22 Solutions -🎄-
Kotlin, Python, and Rust solutions are the same solution but much uglier.
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-🎄- 2021 Day 21 Solutions -🎄-
I'm doing the same cached recursion in Kotlin, Python, and Rust.
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-🎄- 2021 Day 20 Solutions -🎄-
Haskell 621/603
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-🎄- 2021 Day 19 Solutions -🎄-
Haskell 258/240
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-🎄- 2021 Day 18 Solutions -🎄-
Haskell Kotlin 622/1185
What are some alternatives?
tour_of_rust - A tour of rust's language features
adventofcode - Advent of Code solutions of 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 and 2023 in Scala
AoC - my personal repo for the advent of code yearly challenge
adventofcode - Advent of Code challenge solutions
roast - 🦋 Raku test suite
advent-2021 - [Moved to: https://github.com/Crazytieguy/advent-of-code]
advent-of-code-go - All 8 years of adventofcode.com solutions in Go/Golang; 2015 2016 2017 2018 2019 2020 2021 2022
adventofcode - Advent of code solutions
advent-of-code-rust - My solutions to Advent Of Code
awesome-zig
ghc - Mirror of the Glasgow Haskell Compiler. Please submit issues and patches to GHC's Gitlab instance (https://gitlab.haskell.org/ghc/ghc). First time contributors are encouraged to get started with the newcomers info (https://gitlab.haskell.org/ghc/ghc/wikis/contributing).
adventofcode.sh - Advent of Code 2020 and 2015, done in bash. Because why not?