Advent_of_Code2021
Solutions to Advent of COde 2021 (by cettt)
adventofcode
Advent of Code challenge solutions (by flwyd)
Advent_of_Code2021 | adventofcode | |
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12 | 59 | |
1 | 6 | |
- | - | |
0.0 | 8.5 | |
over 2 years ago | 4 months ago | |
R | Julia | |
- | MIT License |
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 -❄️-
Code on GitHub is currently a mess.
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[2023 Day 5] Exlplanation Like I'm 5
In the spirit of the Day 5 ALLEZ CUISINE! challenge to ELI5 (Explain Like I'm Five), here's a tasty explanation of how my algorithm works using only a large bucket of Red Vines and a knife. It says to use lined paper, but if you try this at home consider aligning things on a cutting board.
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-❄️- 2023 Day 4 Solutions -❄️-
[Language: Jsonnet] (on GitHub)
- -🎄- 2022 Day 25 Solutions -🎄-
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-🎄- 2022 Day 24 Solutions -🎄-
Elixir code, thoughts
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-🎄- 2022 Day 23 Solutions -🎄-
Elixir 1554/1502 code, reflections
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-🎄- 2022 Day 21 Solutions -🎄-
Elixir 2506/3402 (24 minutes, 2 hours), code, thoughts
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-🎄- 2022 Day 20 Solutions -🎄-
Bonus solution in Go (golang) because I was confused about why my Elixir solution didn't work and decided to implement from scratch in case I'd done something dumb. The Go one also got the wrong answer, but took less than 100ms instead of a minute, so I could try out lots of tweaks that didn't change the answer.
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-🎄- 2022 Day 19 Solutions -🎄-
Elixir 2031/2641 after 3.25/6.5 hours! Code on GitHub
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-🎄- 2022 Day 18 Solutions -🎄-
I spent time this afternoon sprucing up my helpers for the iex REPL. I spent a bunch of time poking at things in IEx the last couple days and wanted to make sure I would minimize keystrokes if I needed to debug things on my phone while drunk. Turns out Thursday night > Friday night > Saturday night in terms of difficulty, so all those macros have so far saved me zero seconds :-)
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
adventofcode - Solutions for problems from AdventOfCode.com
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
aoc2021 - Advent of Code 2021 - my answers
AdventOfCode - My solutions for Advent of Code
AdventOfCode2021.jl - Advent of Code 2021 in Julia
advent2021
aoc2021 - Advent of Code 2021 on my homemade 16-bit CPU SCAMP
AoC - my personal repo for the advent of code yearly challenge
rockstar - The Rockstar programming language specification
Advent_of_Code2021 vs adventofcode
adventofcode vs adventofcode
Advent_of_Code2021 vs advent-of-code
adventofcode vs adventofcode
Advent_of_Code2021 vs adventOfCode
adventofcode vs aoc2021
Advent_of_Code2021 vs AdventOfCode
adventofcode vs AdventOfCode2021.jl
Advent_of_Code2021 vs advent2021
adventofcode vs aoc2021
Advent_of_Code2021 vs AoC
adventofcode vs rockstar