adventofcode
By yspreen
aoc2021
Advent of Code 2021 - my answers (by ephemient)
adventofcode | aoc2021 | |
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11 | 32 | |
11 | 26 | |
- | - | |
8.6 | 0.0 | |
4 months ago | about 1 year ago | |
Python | Kotlin | |
- | - |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
adventofcode
Posts with mentions or reviews of adventofcode.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-12-31.
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[2022 day 19] after trying ever day for the last 11 days, nothing seems to work
I've tried this, didn't seem to help me much. I think this was the code
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I'm really proud of solving this year, some close calls for giving up in there for sure! 18, 19, and 24 threw me for a loop. Thanks topaz for another great year 💙
repo
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2021 day 18 part 2: test input works, real one doesn't.
full solution: https://github.com/yspreen/adventofcode/blob/main/2021/18/main.py
- -🎄- 2021 Day 16 Solutions -🎄-
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5 / 6
All solutions @ yspreen/adventofcode
- 4 / 6
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Day 14 2019
For part 2, I have one hint for you. I never could quite figure out how to handle spares and use them correctly. So I just ended up calculating decimals. As in, it requires 2.7 of material X. And then figuring out how to round later. Maybe this helps. My repo is https://github.com/yspreen/adventofcode
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[2019 Day 7] Part two: Examples work, puzzle input does not
Okay, this bug hid extremely well. My extraction of opcodes from the input was faulty, and apparently only now did some edge-case catch that! Incredible. This is the fix commit: https://github.com/yspreen/adventofcode/commit/5edfa126b7176f2fa7776fe15eb4b4eff1386bb2
aoc2021
Posts with mentions or reviews of aoc2021.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-02-04.
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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?
When comparing adventofcode and aoc2021 you can also consider the following projects:
hello-world - Innocent first test.
adventofcode - Advent of Code solutions of 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 and 2023 in Scala
nom - Rust parser combinator framework
AoC - my personal repo for the advent of code yearly challenge
AOC2021-in-Fortran - Advent of Code 2021 solutions in Fortran
adventofcode - Advent of Code challenge solutions
adventofcode - Advent of code
roast - 🦋 Raku test suite
advent_of_code
advent-2021 - [Moved to: https://github.com/Crazytieguy/advent-of-code]
advent-of-code - 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 vs hello-world
aoc2021 vs adventofcode
adventofcode vs nom
aoc2021 vs AoC
adventofcode vs AOC2021-in-Fortran
aoc2021 vs adventofcode
adventofcode vs adventofcode
aoc2021 vs roast
adventofcode vs advent_of_code
aoc2021 vs advent-2021
adventofcode vs advent-of-code
aoc2021 vs advent-of-code-go