advent-of-code
For sharing my adventofcode.com solutions (by kbielefe)
adventofcode
Advent of code solutions (by mathsaey)
advent-of-code | adventofcode | |
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13 | 55 | |
13 | 20 | |
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0.0 | 7.8 | |
4 months ago | 4 months ago | |
Scala | Elixir | |
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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.
advent-of-code
Posts with mentions or reviews of advent-of-code.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-12-05.
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[2023 Day 5 Part 2] Haskell libraries really shine here
I didn't realize Haskell had that. I wrote a similar Scala library for 2022 Day 15 that's basically the encapsulated equivalent of a [Range a], but I really like the API of Haskell's library. Especially Haskell always handles infinite sequences well.
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-❄️- 2023 Day 5 Solutions -❄️-
[LANGUAGE: Scala] GitHub
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[2022 All Days]
Here's mine. Most of it I wrote in prior years, but refined this year. To account for problem-specific details, the functions are very generic and higher-order. It has a handful of well-known algorithms like A* and Floyd-Warshall, some handy data structures like circular buffers and intervals, and some type classes that are useful for parsing puzzle input.
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-🎄- 2022 Day 18 Solutions -🎄-
Scala 30ms + 70ms
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-🎄- 2022 Day 15 Solutions -🎄-
Scala 6.5 seconds.
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-🎄- 2022 Day 13 Solutions -🎄-
Scala
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-🎄- 2022 Day 12 Solutions -🎄-
I wrote an immutable A* in Scala a few years ago. It's not too bad if you have immutable hash maps and an immutable priority queue. Comes in handy for a lot of puzzles.
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[2022 day 4] My experience in a nutshell
Last year I made myself an input parsing library that was really nice for this problem. I just create a Pair class with 4 number members, then ask for a List[Pair] and it knows what to do. My solution.
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Best immutable priority queue for scala
I implemented my own using a pairing heap. It sped up my immutable A* considerably, but I was just using minBy on a List before that. Inserts are amortized O(1) and delete-mins are O(log n).
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What is the best way to read a text file of your input in your language of choice?
This year I'm creating a Scala library to make it easier. I specify a type like List[Int] and it summons the correct type classes to parse it into that format for me.
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 2023-12-09.
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-❄️- 2023 Day 10 Solutions -❄️-
Part one went fairly fast, but spent quite some time on getting part two right. I settled on the approach of just iterating over the grid and using a boolean to see if I had to count elements or not. However, I had some issues figuring out when to swap, this post by /u/rogual helped me figure it out. After that I lost quite some time on an error that only occurred with my input, not with the example input. It turned out that my loop (which I take form my p1 solution) didn't include the start node, which caused all sorts of counting issues.
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-❄️- 2023 Day 4 Solutions -❄️-
[Language: Elixir] https://github.com/mathsaey/adventofcode/blob/master/lib/2023/4.ex
- -🎄- 2022 Day 25 Solutions -🎄-
- -🎄- 2022 Day 24 Solutions -🎄-
- -🎄- 2022 Day 23 Solutions -🎄-
- -🎄- 2022 Day 22 Solutions -🎄-
- -🎄- 2022 Day 21 Solutions -🎄-
- -🎄- 2022 Day 20 Solutions -🎄-
- -🎄- 2022 Day 19 Solutions -🎄-
- -🎄- 2022 Day 18 Solutions -🎄-
What are some alternatives?
When comparing advent-of-code and adventofcode you can also consider the following projects:
advent-of-code-data - Download Advent of Code input data with ease.
AdventOfCode2021 - Advent of code 2021
advent-of-code-scala - Solving advent of code challenges
adventofcode - Advent of Code solutions of 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 and 2023 in Scala
aoc - 🎄 My solutions and walkthroughs for Advent of Code and more related stuff.
adventofcode - Answers to Advent of Code
advent-of-code
aoc2021 - Advent of Code 2021 - my answers
advent-of-code-2020
rockstar - The Rockstar programming language specification
adventofcode2022
roast - 🦋 Raku test suite
advent-of-code vs advent-of-code-data
adventofcode vs AdventOfCode2021
advent-of-code vs advent-of-code-scala
adventofcode vs adventofcode
advent-of-code vs aoc
adventofcode vs adventofcode
advent-of-code vs advent-of-code
adventofcode vs aoc2021
advent-of-code vs advent-of-code-2020
adventofcode vs rockstar
advent-of-code vs adventofcode2022
adventofcode vs roast