Advent_of_Code_2021
My solutions to Advent of Code 2021 (by neelakantankk)
adventofcode
Advent of Code challenge solutions (by flwyd)
Advent_of_Code_2021 | adventofcode | |
---|---|---|
11 | 59 | |
0 | 6 | |
- | - | |
0.0 | 8.5 | |
over 2 years ago | 4 months ago | |
Python | 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_Code_2021
Posts with mentions or reviews of Advent_of_Code_2021.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2021-12-14.
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-🎄- 2021 Day 15 Solutions -🎄-
Python solution. Part 1 runs in no time at all. Part 2 takes about 1.2 s which, I think, is because I am creating the entire 500x500 grid at the beginning. I suspect that I could speed it up considerably by only creating a grid in a direction when I get there, maybe create the next tile to the right and down when I get to a tile. A tile update function would probably not be too difficult as each cost would be an (x,y) multiple of the cost's base (x,y). I'm going to attempt to bring this to below 1s. :D
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-🎄- 2021 Day 14 Solutions -🎄-
Python
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-🎄- 2021 Day 13 Solutions -🎄-
My solution in Python. Part 1 was pretty easy to do with sets. For Part 2, I just printed to console and put in the letters. :D
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-🎄- 2021 Day 11 Solutions -🎄-
Surprised at the pretty small input file size :D but pretty easy Python solution using dicts, lists, and sets. Python comprehensions just make life so much easier.
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-🎄- 2021 Day 9 Solutions -🎄-
Finally managed to solve Part 02 in Python. I was stuck because I could not figure out a way to go through all the points around a low point till I got to a 9. Then yesterday I say u/skarlso's post about Red Blob games and the various pathing algorithms, and the breadth-first-search example just unblocked the whole solution for me. :)
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-🎄- 2021 Day 6 Solutions -🎄-
Python solution that takes about a second for part 2. The logic is the same for both parts, just changed the number of days it runs for.
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-🎄- 2021 Day 5 Solutions -🎄-
Bless Python's sets! Makes checking for membership such a breeze!
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-🎄- 2021 Day 4 Solutions -🎄-
Python
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-🎄- 2021 Day 3 Solutions -🎄-
Pretty easy with Python. Some list comprehension, some count, some join, some int and it's done. Could be more efficient, of course. 😁
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-🎄- 2021 Day 2 Solutions -🎄-
Simple Python-based solution yet again.
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_Code_2021 and adventofcode you can also consider the following projects:
Advent-of-code-2021-golang - Advent of code 2021 Go solutions
adventofcode - Solutions for problems from AdventOfCode.com
adventofcode - My solutions to the Advent of Code challenges
adventofcode - Advent of Code solutions of 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 and 2023 in Scala
aoc2021rust
aoc2021 - Advent of Code 2021 - my answers
advent_of_code - My solutions to advent of code puzzles
AdventOfCode2021.jl - Advent of Code 2021 in Julia
AOC2021
aoc2021 - Advent of Code 2021 on my homemade 16-bit CPU SCAMP
adventofcode
rockstar - The Rockstar programming language specification
Advent_of_Code_2021 vs Advent-of-code-2021-golang
adventofcode vs adventofcode
Advent_of_Code_2021 vs adventofcode
adventofcode vs adventofcode
Advent_of_Code_2021 vs aoc2021rust
adventofcode vs aoc2021
Advent_of_Code_2021 vs advent_of_code
adventofcode vs AdventOfCode2021.jl
Advent_of_Code_2021 vs AOC2021
adventofcode vs aoc2021
Advent_of_Code_2021 vs adventofcode
adventofcode vs rockstar