-🎄- 2020 Day 24 Solutions -🎄-

• advent-of-code

  18 66 8.8 TypeScript

  My solutions for Advent of Code (by AlexAegis)

TypeScript

• aoc2020

  13 0 0.0 C

  Discontinued Advent of Code 2020 (by ednl)

Thanks to /u/thomasahle for encouraging me to implement axial coordinates, which made it a lot easier. Also thought of a better way to parse the input in one go. And this allowed me to tighten up the grid dimensions. Runs in under a second on a very old laptop, half of which is because of the scipy import ... https://github.com/ednl/aoc2020/blob/main/day24alt2.py

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• AOC2020

  3 0 0.0 Kotlin

So, the only sensible thing to do was rewrite HashSet for my own use: link

• AdventOfCode2020

  3 0 0.0 Perl

That is what I did for my perl solution and that takes less than 1.5 seconds to do both parts.

• advent2020

  2 0 0.0 Python

  Advent of Code 2020 (by jackowayed)

I'm also proud that to speed up my thinking through this grid, I literally downloaded the top image on the wikipedia article and rotated it 90 degrees. I knew conceptually that the grid he described was the equivalent to what I was looking at, but thinking through the deltas degrees off was hard, so I made it easier, and checked it in for kicks https://github.com/jackowayed/advent2020/blob/main/24/1920px-Tiling_6_simple.svg.png

• adventOfCode

  3 15 7.5 Elm

  Solutions to the 'Advent of Code' (http://adventofcode.com) programming challenges in Elm (by jwoLondon)

This was a satisfying one. I love working with hex grids. I used the similar 3-axis hex representation as day 11, 2017 (but rotated by 90 degrees), and the similar unbounded game of life pattern seen on day 17, 2020 and exactly a year ago on day 24 2019.

• aoc2020

  22 29 0.0 Rust

  Advent of Code 2020 - my answers

Haskell

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• hac

  17 104 9.0 Ada

  HAC Ada Compiler - a small, quick Ada compiler fully in Ada

Other solutions available here.

• advent-of-code-2020

  8 0 0.0 Python

Python 3, 97/50. code (permalink) & screen recording

• aoc-2020

  5 0 0.0 JavaScript

  My solutions to Advent of Code 2020. (by Fryer)

JavaScript 789/766

• advent2020

  2 0 0.0 Python

  https://adventofcode.com/2020 (by pvillano)

Python runs in .22 seconds.

• aoc

  5 26 7.5 Python

  🎄 advent of code 414⭐ (by MasterMedo)

python

• Advent-of-Code

  4 0 0.0 Python

  Solutions to Advent of Code challenges (by StasDeep)

Python, 345/622 (34 sloc)

• advent-of-code-go

  63 152 4.0 Go

  All 8 years of adventofcode.com solutions in Go/Golang; 2015 2016 2017 2018 2019 2020 2021 2022

Go solution 1240/668

• advent-of-code

  2 0 8.5 Rust

Rust [586/1187]

• snippets

  240 - -

Python3

• AdventOfCode2020

  2 7 0.0 Python

  My solutions for Advent of Code 2020 in Python. I try to write solutions as elegant, readable and Pythonic as possible. (by 0xVector)

Python, simple and (hopefully) readable.

• AdventOfCode2020

  2 3 0.0 F#

  Advent of Code 2020 (by kimvais)

On the first look your solution is almost identical to mine

• Advent-of-Code-2020

  1 2 1.8 Python

  Advent of Code 2020 (by wjholden)

Full solution on GitHub.

• Advent_of_Code_in_Pascal

  23 8 0.0 Pascal

  My solutions to the Advent of Code, in Free Pascal

Pascal (with visualization in text output!)

• AOC2020

  3 1 7.7 Haskell

  Discontinued My solutions for the AOC (by MatthiasCoppens)

Haskell, runs in 600 ms.

• aoc20

  4 1 0.0 Python

Code on Github.

• Advent-of-Code

  1 0 8.4 Ruby

  My solutions for adventofcode.com (by lethan)

My solutions runs in a couple of seconds by only keeping track of black tiles and their neighbors. So alot of unneeded updates are avoided. My elixir solution.

• advent-of-code

  4 1 6.2 Python

  My solutions for Advent of Code (by besasam)

Python. So many games of life this year. I'm not bothered though :D

• advent_of_code

  4 6 6.6 Jupyter Notebook

  #adventOfCode (by zedrdave)

Same on GitHub

• advent-of-code

  17 - -

My solution in Common Lisp.

• aoc-2020

  3 0 0.0 Rust

  Advent of code 2020 in Python and Rust (by TamTran72111)

My Python and Rust solutions, which run in 0.5s and 80ms.

• aoc-2020

  2 0 0.0 Rust

  aoc with generators (by kiwiscott)

Rust - Super good day today. Almost starting to grok rust. I'm not as great at iterators as many others. ;)

• aoc-2020

  6 0 0.0 C++

  Discontinued My solutions for https://adventofcode.com (by ScottBailey)

C++ part2 215ms on my laptop

• advent-of-code

  14 71 8.5 JavaScript

  Collection of JS solutions for puzzles from adventofcode.com 🎁🎄 (by romellem)

Source code is available here.

• aoc2020

  3 1 0.0 Lua

  Advent of Code 2020 solutions (by sharpobject)

Lua 275/174

• adventofcode

  5 1 0.0 C++

  Solutions for Advent of Code over the years (by sburuiana)

C++ 269/103

• AdventOfCode2020

  1 11 0.0 Java

  My solutions for Advent Of Code 2020 (by akaritakai)

Code here.

• Advent-of-Code

  1 1 3.5 Python

  Advent of Code python solutions (by filipmlynarski)

Python 376/465. For hex coordinates I was simply using multiples of 2 for values in x axis for even y axis and multiples of 2 - 1 for odd y axis. paste, GitHub, YouTube

• Advent-of-Code

  42 9 8.6 Python

  Advent of Code (by michaeljgallagher)

Link Struggled at first on how to implement the hexagonal grid, but after a bit of research stumbled across this. Used complex numbers for the offset coordinates (like in day 12), and then pretty much just copy and pasted my day 17.

• adventofcode

  1 1 6.6 Python

Python 147/258

• AdventOfCode-Java

  21 50 8.8 HTML

  adventOfCode(Language.JAVA);

Java

• Advent-of-Code-2020

  3 0 0.0 Python

  My solutions for Advent of Code 2020 (by kermitnirmit)

Python 929/997

• aoc2017apl

  1 1 1.8 APL

  Advent of Code 2017 solutions in APL

I spent most of the time trying to remember how I had solved 2017 day 11.

• aoc2020apl

  4 23 0.0 APL

  Advent of Code 2020 solutions in Dyalog APL

Dyalog APL 437/288

• Advent-2020

  3 7 0.0 Python

  My Solutions for Advent of Code 2020

Video Explanation Github Link Easy day, got tripped up with some typos in my coordinate system but still pretty quick. Did my best to use yet another different game of life approach so I wouldn't be going over essentially the same code as in the other two.

• AoC2020

  5 0 0.0 C#

  Programs for Advent of Code 2020 (by Perska)

C# Solution: I keep misreading instructions edition

• AdventofCode2020

  1 1 0.0 C

  For the 2020 Advent of Code challenge (by curiouskiwi)

Solution in C

• adventofcode

  1 1 7.2 Python

  https://adventofcode.com/ (by jackfrost168)

code for part1 and part2. it's an interesting question. Record black tiles or remove if flipped even times.

• Advent2020

  3 0 0.0 Python

Python 3

• adventofcode

  44 308 9.5 C#

  :christmas_tree: Advent of Code (2015-2023) in C# (by encse)

Cleaned up: https://github.com/encse/adventofcode/blob/master/2020/Day24/Solution.cs

• Advent-of-Code-2k20

  2 0 0.0 Haskell

HASKELL

• advent-of-code

  3 3 8.4 Elixir

  Advent of Code challenges in various languages (by cfbender)

Elixir

• aoc

  4 19 7.9 Scheme

  advent of code (by jitwit)

J Programming Language

• advent-of-code-2020

  3 0 0.0 Python

  Answers and solutions for Advent of Code 2020. (by Bruception)

Python3 - simple solution.

• adventofcode

  4 8 7.4 Scala

Scala solution

• advent-of-code-2020

  2 1 0.0 Rust

  🦀 Rust solutions to AoC 2020 (by wfxr)

Rust: Once you realized that each tile can be represented by a 2-D point, part 2 is easier than Day17 part2.

• adventOfCode-2020

  2 1 0.0 Java

  Code Challenges and Practice (by valiant-code)

Java - github

• Advent-of-Code-2020

  1 0 0.0 Haskell

  https://adventofcode.com/2020 completed in Haskell (by 2jacobtan)

• advent-of-code-2020

  2 0 0.0 JavaScript

  Advent of Code 2020 Solutions (by chuuddo)

RegExp + Doubled coordinates + Day 17 solution for part 2

• advent_of_code_2020

  1 0 0.0 Jupyter Notebook

  Advent of Code 2020 (by aorgou)

Python3 in notebook

• advent-of-code-2020

  1 0 0.0 Rust

Code: https://github.com/lulugo19/advent-of-code-2020/blob/main/src/day24.rs

• aoc2020

  4 5 0.0 Kotlin

  Advent of Code 2020 (Kotlin) (by p88h)

Python with visualisation https://github.com/p88h/aoc2020/blob/main/vis/day24.py

• hexgrid

  1 39 0.0 Go

  Golang library to manage hexagon grids (by pmcxs)

Really happy with this solution. Borrowed Hex code from pmcsx/hexgrid which I guess is a lil naughty, but I was pleased with my execution time of around 300ms for Part 2 and around 600us for Part 1. Also pleased with the clarity and brevity of my code.

• Advent-of-Code-2020

  2 0 3.9 C++

  Advent of Code 2020 written in C++ using VS code with WSL integration. (by daniel-meilak)

Tried to comment my code as best I could: GitHub day 24 (part 1 and 2) in C++

• advent-2020

  2 2 0.0 Go

  My solutions to https://adventofcode.com/2020 using Golang (by colinodell)

Golang solution, runs in 0.19s for both parts combined.

• AoC

  1 0 3.5 Python

  Advent of Code (by snoyes)

Python - again, no ifs, ands, or buts, and only four lines longer than day 17. I'm particularly pleased that, by using complex numbers for the coordinates, navigating the directions can be done with sum.

• AoC-2020-solutions

  3 3 0.0 Python

  My Python solutions to Advent of Code 2020! (by womogenes)

Code! (Python)

• aoc-2020

  5 3 1.8 Rust

  Advent of Code 2020 (by aldanor)

Here's my day 24 in Rust, using SIMD as usual :) (and offset coordinate encoding to make a SIMD-friendly 2-D cell grid)

• aoc2020

  1 0 1.8 Perl

  Advent of Code 2020 (by gustafe)

Perl

• advent_2020

  3 0 0.0 C

  Discontinued Advent of code 2020 [Moved to: https://github.com/mattteochen/AoC]

C solution: both part

• advent-of-code-2020

  1 0 0.0 D

D (dlang) solution. I couldn't find an unordered set in Phobos so I uuh, I improvised : https://github.com/azihassan/advent-of-code-2020/tree/master/24

• Advent-of-Code-2020

  2 2 3.0 Python

Part 1 & 2 in 34 sloc with 0.72 Sek. GitHub

• aoc2020

  5 3 0.0 Rust

  Advent of Code 2020 (by sporksmith)

Rust. Nothing particularly clever here, but I managed to keep it both pretty short and easy to follow, I think. ~72 lines without tests.

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