aoc2021
adventofcode | aoc2021 | |
---|---|---|
10 | 32 | |
- | 26 | |
- | - | |
- | 0.0 | |
- | about 1 year ago | |
Kotlin | ||
- | - |
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adventofcode
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-🎄- 2021 Day 11 Solutions -🎄-
part1 and 2
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-🎄- 2021 Day 10 Solutions -🎄-
code
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-🎄- 2021 Day 9 Solutions -🎄-
part1 with window functions: https://explain.dalibo.com/plan/drW
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-🎄- 2021 Day 8 Solutions -🎄-
And part2 is here. Executes in about 40ms on my machine.
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Advent of Code 2021 using SQL (PostgreSQL-flavored)
Your repo comes up a lot in the reddit threads. Day 4/1 was particularly great!
When AOC 2021 is done I hope I will find the time to compile the different approaches for each day and compare them.
My current list of repos is this:
- https://gitlab.com/autra/adventofcode
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-🎄- 2021 Day 6 Solutions -🎄-
https://gitlab.com/autra/adventofcode https://gitlab.com/feike/adventofcode https://github.com/dflss/advent-of-code-2021 https://github.com/qwesda/AOC2021-postgresql
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-🎄- 2021 Day 4 Solutions -🎄-
Solutions are here: https://gitlab.com/autra/adventofcode/-/tree/master/year_2021/day4
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-🎄- 2021 Day 3 Solutions -🎄-
part 1 (really easy in sql)
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-🎄- 2021 Day 2 Solutions -🎄-
EDIT: full code (with loading script)
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?
programming-challenges - My attempts at solving various programming challenges. Leetcode, codewars, adventofcode, etc
adventofcode - Advent of Code solutions of 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 and 2023 in Scala
advent-2021-sql - Advent of Code 2021 using SQL (PostgreSQL-flavored)
AoC - my personal repo for the advent of code yearly challenge
adventofcode
adventofcode - Advent of Code challenge solutions
AdventOfCode2021
roast - 🦋 Raku test suite
adventofcode - Yearly advent coding challenge at https://adventofcode.com/
advent-2021 - [Moved to: https://github.com/Crazytieguy/advent-of-code]
adventofcode
advent-of-code-go - All 8 years of adventofcode.com solutions in Go/Golang; 2015 2016 2017 2018 2019 2020 2021 2022