Advent_of_Code2021
Solutions to Advent of COde 2021 (by cettt)
adventofcode
Advent of code solutions (by mathsaey)
Advent_of_Code2021 | adventofcode | |
---|---|---|
12 | 55 | |
1 | 20 | |
- | - | |
0.0 | 7.8 | |
over 2 years ago | 4 months ago | |
R | Elixir | |
- | - |
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_Code2021
Posts with mentions or reviews of Advent_of_Code2021.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2021-12-23.
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-🎄- 2021 Day 24 Solutions -🎄-
Then I wrote a small algorithm which finds the minimum and maximum values: no brute force needed- Full code with extra explanation on github.
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-🎄- 2021 Day 23 Solutions -🎄-
My code is super slow: takes about 15 minutes for part 2. There is much too improve: will take a good look at this after the 25th.
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-🎄- 2021 Day 22 Solutions -🎄-
My code is not yet as efficient as it could be: i takes about 4-5 seconds for both parts.
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-🎄- 2021 Day 21 Solutions -🎄-
Today was my cheatday as I used the tidyverse library :) github
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-🎄- 2021 Day 20 Solutions -🎄-
Today was quite easy again. The only challenging part in my input was that light pixels surrounded by only light pixels turn dark (and vice versa). github
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-🎄- 2021 Day 19 Solutions -🎄-
For a while I didnt think I was going to make it :) But here I am :) github.
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-🎄- 2021 Day 17 Solutions -🎄-
I first computed bounds and checked within a certain region of velocities. Compared with yesterday this was a piece of cake. I guess for must inputs the solution to part1 is simply y*(y+1)/2 where y is the absolute value of the lower bond - 1. github
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-🎄- 2021 Day 16 Solutions -🎄-
Well save to say, this was my least favorite puzzle since 2018: and I still had a lot of fun :) I used two global variables: one keeping track of the current index and adding up the version numbers. I am praying that there won't be a follow up on this :D github
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-🎄- 2021 Day 15 Solutions -🎄-
The full code is on github
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-🎄- 2021 Day 14 Solutions -🎄-
cleaned up my code a little. Both parts run in 40ms. Full code with comments is on github
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_Code2021 and adventofcode you can also consider the following projects:
adventofcode - My solutions for Advent of Code
AdventOfCode2021 - Advent of code 2021
advent-of-code - Advent of Code
adventofcode - Advent of Code solutions of 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 and 2023 in Scala
adventOfCode - Advent of Code solutions in a number of different languages
adventofcode - Answers to Advent of Code
AdventOfCode - My solutions for Advent of Code
aoc2021 - Advent of Code 2021 - my answers
advent2021
rockstar - The Rockstar programming language specification
AoC - my personal repo for the advent of code yearly challenge
roast - 🦋 Raku test suite
Advent_of_Code2021 vs adventofcode
adventofcode vs AdventOfCode2021
Advent_of_Code2021 vs advent-of-code
adventofcode vs adventofcode
Advent_of_Code2021 vs adventOfCode
adventofcode vs adventofcode
Advent_of_Code2021 vs AdventOfCode
adventofcode vs aoc2021
Advent_of_Code2021 vs advent2021
adventofcode vs rockstar
Advent_of_Code2021 vs AoC
adventofcode vs roast