-🎄- 2020 Day 22 Solutions -🎄-

• advent-of-code

  18 66 8.9 TypeScript

  My solutions for Advent of Code (by AlexAegis)

TypeScript

• aoc-2020

  6 0 0.0 C++

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

In part1, though, vector was repeatably faster than circular_buffer. About 40us for vector and 70us or so for circular buffer. I expected circular buffer would out perform vector for this task.

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• aoc2020

  22 29 0.0 Rust

  Advent of Code 2020 - my answers

Haskell

• Advent_of_Code_in_Pascal

  23 8 0.0 Pascal

  My solutions to the Advent of Code, in Free Pascal

Only to find that I had wasted about 2 hours.. and had to re-implement everything, so the second time I did it quick and dirty instead. I kept the cards as strings with the deck being a single string... way, way simpler, even with the recursion, etc.

• adventofcode

  4 8 7.4 Scala

I added an AtomicInteger counter to each of our caching branches here in yours, and here in mine.

• aoc2020

  5 2 0.0 TypeScript

As I'm trying to optimize my solution (~3s) so I tried to check what makes your solution so fast, but it doesn't seem to work with my input. Example and part 1 works as expected, but part 2 with my input returns 8104 instead of 32665

• aoc-2020

  5 3 1.8 Rust

  Advent of Code 2020 (by aldanor)

Borrowed both ideas in my version :) On my input your version runs at 3ms, mine in 1.5ms, so it might be faster on some inputs (link). I initially started with something similar to yours but then figured why not use 512-bit ints, so that the notion of 'head' and 'tail' disappears as your head then stays at position 0 (so, e.g., to remove a card, you just right-shift the whole bigint). Also used a tiny bit of simd along the way.

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• AoC

  87 18 8.1 Python

  my personal repo for the advent of code yearly challenge (by Fadi88)

github

• AoC2020

  5 0 0.0 C#

  Programs for Advent of Code 2020 (by Perska)

CrabSharp (aka C#) Solution

• advent-of-code-2020

  3 0 0.0 Python

  Done in boring old python (by peter-tanner)

part 1

• advent-of-code

  2 0 7.5 JavaScript

  Solutions for Advent of Code (by smrq)

Part 1 Part 2

• Advent2020

  3 0 0.0 Python

Python 3, 905 on the part 2 leaderboard, which is a good position for me.

• advent-of-code-2020

  2 0 0.0 Python

  My solutions for Advent of Code 2020 tasks (by Jozkings)

Python 3 (1345/540)

• AoC2020

  3 0 0.0 MATLAB

  Advent Of Code 2020 (by ShaoshiZ)

Part 1\ Part 2\ Since the script for part 2 is written in a recursive way, there is an extra step to get the final answer. The final answer can be easily obtained based on the non-empty deck.\ \ I was confused by the infinite loop prevention rule, but other than that, pretty simple puzzle.

• advent_of_code_2020

  1 0 0.0 C++

  My Advent of Code 2020 repository (by zv0n)

code

• advent_of_code

  3 1 0.0 TypeScript

part1

• adventofcode-solutions

  3 23 8.5 C#

  🎄 My solutions to https://adventofcode.com/

My input: https://github.com/xPaw/adventofcode-solutions/blob/d5b979f4a4fe45b5c14c290c69cb7c7d323310ec/2020/data/day22.txt

• advent-of-code

  4 1 6.2 Python

  My solutions for Advent of Code (by besasam)

Python. Part 2 threw me for a loop (similar to many others here, it seems) but it's nice to be reminded to read the instructions carefully and not just rely on results from the sample inputs. Not terribly performant, but it runs quickly enough and the code is hopefully not too hard to read, so I'm quite happy with it.

• advent_2020

  3 0 0.0 C

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

part 1 part 2

• advent-of-code-2020

  1 0 0.0 Go

  Solutions to Advent of Code 2020 (by joe-reed)

Go/Golang

• advent-of-code

  6 0 8.2 Python

  Advent of Code in python3 (by lehippie)

Python3 solution

• adventofcode

  3 1 4.1 Rust

  Gok's Advent of Code Repo (by gokberkkocak)

RUST

• AoC2020

  1 1 0.0 Swift

Swift

• advent-of-code

  1 0 0.0 Jupyter Notebook

  My solutions to the Advent of Code puzzles (by meckenbach)

Here are all my Python solutions so far in a Jupyter notebook, including today's one.

• AdventOfCode

  26 325 8.0 Python

  My Advent of Code solutions. I also upload videos of my solves: https://www.youtube.com/channel/UCuWLIm0l4sDpEe28t41WITA

Python, placed 454/29. Code: https://github.com/jonathanpaulson/AdventOfCode/blob/master/2020/22.py. Video of me solving: https://youtu.be/iD4R7wSNrdw

• advent-of-code-2020

  8 0 0.0 Python

Python, 138/16. code (permalink) & screen recording

• adventofcode

  5 1 0.0 C++

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

C++ 324/394

• advent-of-code-go

  63 152 3.0 Go

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

Go Solution 537/997

• AdventOfCode2020

  1 0 0.0 C#

  Advent of code 2020 repository. (by Tomas-Juri)

C#

• Advent-of-Code-2020

  3 0 0.0 Python

  My solutions for Advent of Code 2020 (by kermitnirmit)

Python3 my solution. Takes a few seconds for part2.

• advent-of-code-2020

  3 0 0.0 Python

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

Python3 simple solution.

• adventofcode

  1 1 6.6 Kotlin

AoC 2020 Day 22 - Kotlin. 2094/2452

• Advent-of-Code

  42 9 8.6 Python

  Advent of Code (by michaeljgallagher)

Finished part 1 in 8 minutes, then proceeded to take over an hour to finish part two. Re-wrote the while loop maybe 5 times and got 5 different answers from my input, yet it would always pass the test cases

• advent-of-code-2020

  2 - -

Golang

• aoc-2020

  5 0 0.0 JavaScript

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

JavaScript 2291/1888

• aoc2020

  2 1 0.0 Python

  Advent of Code for 2020 (by UnicycleBloke)

Python (1906/2343): https://github.com/UnicycleBloke/aoc2020/blob/main/day22/day22.py

• advent-of-code-2020

  2 - -

https://gitlab.com/t-rkr/advent-of-code-2020/blob/master/day22/day22.pl

• AdventOfCode2020

  1 8 0.0 Java

  Solutions for the Advent of Code 2020 challenges in Java. (by SizableShrimp)

Java, 417/312. https://github.com/SizableShrimp/AdventOfCode2020/blob/master/src/main/java/me/sizableshrimp/adventofcode2020/days/Day22.java

• adventOfCode

  3 15 7.5 Elm

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

Literate Elm

• advent-of-code

  2 0 0.0 Haskell

Haskell by a non-Haskell programmer ;)

• aoc

  24 380 8.9 Python

  🎄 My solutions and walkthroughs for Advent of Code and more related stuff.

Python 3 solution - Walkthrough

• AdventOfCode-Java

  21 50 8.8 HTML

  adventOfCode(Language.JAVA);

Java Fun day, I like space cards. I had minor Vietnam flashbacks to the spacecards of last year, but luckily it was nothing like that. Some takeaways:

• aoc-2020

  3 0 0.0 JavaScript

  Complete Advent Of Code 2020 solutions in Node.js (by lnguyenh)

Nodejs solution

• AdventOfCode2020

  2 0 0.0 JavaScript

JavaScript Solution day 22

• aoc2020

  1 1 0.0 Python

  Solutions for Advent of Code 2020 (by frerich)

Python 3 Solution

• aoc

  9 4 8.2 Python

  advent of code (by apparentorder)

• advent-of-code-2020

  2 96 0.0 Haskell

  🎅🌟❄️☃️🎄🎁 (by mstksg)

[Haskell] (Taken from my daily haskell reflections)

• advent-of-code

  9 5 7.1 Python

  advent of code (by fridokus)

Python 3

• AdventOfCode2020

  5 25 2.4 Assembly

  Solving Advent of Code 2020, each day in a different language (by bereal)

Elixir

• aoc-clojure

  6 5 0.0 Clojure

  Advent of code 2020 solutions in Clojure

Clojure: https://github.com/mgrzeszczak/aoc-2020-clojure/blob/master/src/aoc_2020_clojure/day22.clj

• aoc2020_solutions

  1 0 0.0 Python

Python 3 part1, part2

• advent-of-code-2020

  1 0 0.0 Python

Part 1 & 2

• advent-of-code

  3 2 8.0 Python

  All Advent of Code solutions in Python (by taddeus)

python3: https://github.com/taddeus/advent-of-code/blob/master/2020/22_spacecards.py

• hashbrown

  22 2,265 8.2 Rust

  Rust port of Google's SwissTable hash map

  

Doesn't really matter. My original solution was just like yours, but because other people have decided to use *both* deques I've changed mine... and ... it did not work. It turned out to be a bug in hashbrown lol: https://github.com/rust-lang/hashbrown/issues/218

• AoC-2020

  3 1 0.0 Python

  Solutions for Advent of Code 2020 (by Rtchaik)

Python solution with deque

• adventofcode.com

  1 1 0.0 Scala

Scala

• aoc-2020

  3 0 0.0 Rust

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

These are my solutions in Python and Rust, which run in 2.5s and 0.6s respectively. I am looking for some ways to improve the performance

• aoc2020

  3 3 0.0 Scala

  Advent of Code 2020, while learning Scala (by grey-area)

Part 2 in Scala

• aoc-2020

  1 3 0.0 Elixir

  Advent of Code 2020 (by tpaschalis)

Any comments are more than welcome! https://github.com/tpaschalis/aoc-2020/blob/main/day22/day22.exs

• advent-of-code-2020

  1 1 0.0 Python

  Solutions for Advent of code (by abhijithasokan)

Code (see function - game_l2)

• adventofcode

  86 16 7.3 TypeScript

  Solutions for problems from AdventOfCode.com (by bhosale-ajay)

JavaScript/TypeScript Repo

• Advent-of-Code

  14 11 7.8 C#

  C# solutions for Advent of Code puzzles (by DjolenceTipic)

Long day at work, the long time needed to solve all.

• 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)

GitHub solution to Part 2

• adventofcode2020

  1 0 0.0 Groovy

  2020 Advent of Code (by rocksoftcode)

Groovy

• aoc_2020

  1 0 0.0 Julia

  Advent of Code 2020 (by natemcintosh)

Julia

• Advent-of-Code-2020

  1 0 0.0 JavaScript

  Solutions for the 2020 Advent of Code puzzles (using javascript and NodeJS) (by chaeron)

All of my 2020 puzzle solutions, including giving crabs a beating are here: https://github.com/chaeron/Advent-of-Code-2020

• comp_prog

  2 0 0.0 Python

  My solutions to competitive programming problems

Python3 solution on GitHub. Just simulated it. I missed the part that says that when you start a sub-game, that you should only use the first p1card and p2card amount of cards from each deck in that sub-game. Without that, it would take a very long time for the game to end (as I found out after several hours of hoping lol).

• advent-of-code

  2 6 0.0 Rust

  🎄 This is my set of awesome solutions for the Advent of Code puzzles (by garciparedes)

Part 1: https://github.com/garciparedes/advent-of-code/blob/master/2020/22_crab_combat_part_1.rs

• advent_of_code_2020

  1 1 1.8 Ada

  Some Ada solutions to Advent of Code 2020. (by YoannDupont)

Ada

• Advent-of-Code-2020

  1 0 0.0 Python

  Made it through all 25 days of Advent of Code for the first time! (by Leftfish)

Here's my Python solution: https://github.com/Leftfish/Advent-of-Code-2020/blob/main/22/d22.py

• advent-of-code-2020-jq

  2 4 3.3 jq

  Discontinued Solving Advent of Code with jq [Moved to: https://github.com/odnoletkov/advent-of-code-jq]

Part 2

• adventOfCode-2020

  2 1 0.0 Java

  Code Challenges and Practice (by valiant-code)

Java - main & Part 2 game logic

• aoc2020

  1 0 0.0 Rust

  Advent of Code 2020 (by jacksonriley)

Nothing clever about it :) I just tried to use this method of hashing (since it was about 3 times faster than what I was already doing), and noticed that it resulted in the wrong answer for part 2 for my input - so it definitely does matter for some cases!

• advent_of_code

  19 5 8.0 Dart

  Solutions to programming puzzles on Advent of Code (by Praful)

Full source code here.

• advent-of-code-2020

  2 1 0.0 Rust

  🦀 Rust solutions to AoC 2020 (by wfxr)

Rust solution:

• ruby

  182 21,551 10.0 Ruby

  The Ruby Programming Language

  

Yeah, in most languages set is just a wrapper around hash. Pretty sure that's the case with Ruby - https://github.com/ruby/ruby/blob/master/lib/set.rb

• advent-of-code

  10 6 8.5 Jupyter Notebook

  My solutions for the Advent of Code (by JesperDramsch)

Kept it fairly simple in Python. Runs in half a second for both parts together.

• AdventOfCode-rs

  1 1 0.0 Rust

  The https://adventofcode.com in idiomatic declarative Rust

A Rust solution which would be really easy to adopt to multiple players. It takes 70 ms for both parts.

• Advent_of_Code

  4 0 0.0 Python

  These are my solutions to the Advent of Code puzzles. These are some of my first Python scripts, so please manage your expectations. :^) (by Nomen-Heroum)

Mine went down from 20062 to 16881 recursive calls, here's my code (also Python 3). Just add a global CALLS before line 7 and global CALLS; CALLS += 1 before line 17 in the if block to count the function calls.

• aoc2020

  10 22 0.0 Haskell

  Haskell Solutions to Advent of Code 2020 (by haskelling)

Code Repository: https://github.com/haskelling/aoc2020

• aoc2020

  5 3 0.0 Rust

  Advent of Code 2020 (by sporksmith)

Rust, with a pretty straightforward approach.

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