-❄️- 2023 Day 4 Solutions -❄️-

• advent-of-code

  3 1 8.4 Elixir

  Let's go! (by tywhisky)

I think you meant to link to this Solution ;)

• AdventOfCode

  3 1 6.9 Java

  Solutions to Advent of Code problems using Java 17 (and some Guava) (by chandlerklein)

For some reason I really struggled with part 2, originally going down the route of keeping a stack/queue. After a few hours I was too tired and used this solution for reference by u/LastMammoth2499, and now it makes sense:

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• AdventOfCode2023

  2 2 7.6 Ruby

• AoC2023

  1 8 9.1 Swift

  Advent of Code 2023 (by gereons)

[Language: Swift] (code)

• advent-of-code

  4 17 0.0 C

  Discontinued My solutions for Advent of Code (2019-2022) (by dannyvankooten)

• Advent_of_Code_2023

  1 0 8.1 Python

  My attempt for Advent of Code 2023. Will try in Python first, Rust if/when I have time. (by ray10k)

• aoc23

  7 1 7.6 TypeScript

  Advent of Code 2023 solutions written in Deno (by dmatis2)

• WorkOS

  workos.com sponsored

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• advent-of-code-2023-rust

  3 3 7.9 Rust

My solution: https://github.com/LinAGKar/advent-of-code-2023-rust/blob/master/day4/src/main.rs

• Advent_Of_Code

  14 0 8.1 Python

  My solution for the Advent of Code challenges in various languages. (by Dullstar)

• advent_of_code

  3 0 7.1 Rust

  Advent of Code solutions (by Busata)

• aoc-2023-in-kotlin

  1 0 7.8 Kotlin

  Aoc 2023 in Kotlin!

• advent-of-code

  1 1 8.5 Elixir

  Code for advent of code. In different languages n that. (by maxastyler)

github

• advent-of-code

  2 2 8.2 Python

Both parts

• Advent-of-Code-2023

  2 0 8.5 Python

[LANGUAGE: Python]

• advent-of-code

  1 0 10.0 Python

  Discontinued Welcome to my solutions for Advent of Code (by 0xblazy)

GitHub

• AdventOfCode

  29 2 7.7 Python

  Hacky solutions for [Advent of Code](https://adventofcode.com), working on past problems (by AllanTaylor314)

Code: main (5f0a9a8)

• adventofcode

  3 0 7.4 Go

  Solutions to AoC puzzles (by alkurbatov)

• AdventOfCode2023

  1 0 8.7 C#

For more days pointlessly made into one-liners check out my GitHub

• advent-of-code-23

  1 0 7.6 TypeScript

• aoc2023

  2 2 8.7 Scala

  Solutions, tests and framework for Advent of Code 2023 in Scala. (by sanraith)

Full code is available on my github: Day04.scala Used a map in P2 to memoize how many total cards you get from a given card.

• aoc-excel-2023

  1 0 5.5

  Advent of Code 2023 with only Excel

Github for all days

• aoc23

  1 0 7.2 Rust

• aoc2023

  9 13 9.4 Python

  Advent of Code 2023 (Mojo)

• advent-of-code

  8 2 7.5 Go

Code: https://github.com/akashdeepnandi/advent-of-code/blob/main/day4/index.js

• advent2023

  1 0 6.6 Elixir

• aoc

  3 2 7.6 Go

  contains my solutions for different advent-of-code years (by handsomefox)

[LANGUAGE: Go] Enjoyed this one GitHub

• advent_of_code_2023

  1 0 7.2 Rust

• advent-of-code-2023

  1 1 7.4 Common Lisp

• advent-of-code

  13 0 8.8 C#

  advent of code solutions (by messcheg)

• advent-of-code

  1 5 7.2 Ruby

  Advent of Code 🎄 (by vinc)

• adventofcode

  55 20 7.8 Elixir

  Advent of code solutions (by mathsaey)

[Language: Elixir] https://github.com/mathsaey/adventofcode/blob/master/lib/2023/4.ex

• adventofcode2023

  1 0 6.2 C

  my C/rust Solution to advent of code 2023 (by yufusuf)

• advent-of-code

  1 5 7.7 C#

  my submission in C# to Advent of Code challenge https://adventofcode.com/ (by dr124)

[Language: C#] Today very clean one https://github.com/dr124/advent-of-code/blob/master/Advent._2023/Week1/Day4.cs

• adventofcode2023

  2 0 7.7 OCaml

  my attempt at adventofcode 2023 (by crazymerlyn)

• aoc-2023

  1 0 7.1 Python

  13 year old tries aoc (by kenan238)

[LANGUAGE: Python] https://github.com/kenan238/aoc-2023/blob/main/day4/main.py

• adventofcode

  8 2 9.4 C

  Advent of Code (by ednl)

C has no intersection operation, so I sorted the numbers and counted the matches "manually". Only kept an array for the number of card copies and could do the rest while reading the input. Runs in 3.2 ms on an old 2013 iMac, 3.9 ms on a Raspberry Pi 4 (cpu governor = performance). Short code, only one separate function for sorting: https://github.com/ednl/adventofcode/blob/main/2023/04.c

• advent-of-code

  5 4 7.6 JavaScript

Readable javascript solution. I will be pushing updating the repo with each days solutions, Love to hear the feedbacks. https://github.com/sanishchirayath1/advent-of-code/blob/master/2023/day4/index.js

• playground

  6 3 6.9 Kotlin

• advent-of-code

  2 0 7.4 Go

• aoc2023

  5 1 8.5 OCaml

  Solutions to Advent of Code 2023 (by thinnerthinker)

• aoc2023

  2 0 7.5 Python

  my advent of code 2023 solutions (by SourishS17)

p1 https://github.com/SourishS17/aoc2023/blob/main/four-a.py

• advent

  1 0 3.6 Perl

  advent of code (by arroo)

day 4

• aoc_2023

  1 0 7.9 Ruby

  My solutions to Advent of Code 2023 written in Ruby

Github

• advent-of-code

  19 19 9.2 Go

[LANGUAGE: Golang] https://github.com/pemoreau/advent-of-code/blob/main/go/2023/04/day04.go

• ADVENT2023

  1 0 6.5 Nim

• adventofcode23

  3 1 7.7 Rust

  Solutions for https://adventofcode.com/2023 (by oriontvv)

[LANGUAGE: Rust] Pretty simple code

• advent-of-code

  2 10 9.0 Java

  Solutions to the Advent of Code problem sets. (by ChrisTopping)

Github for both parts

• advent-of-code

  1 0 7.6 Rust

  Advent of code solutions (by nicolas-sabbatini)

Part A: Link

• advent-of-code

  3 0 9.3 JavaScript

  Advent of Code 2021-2022, JS/Rust/Python (by Joxter)

recursive (1ms) and non-recursve (36ms) solutions https://github.com/Joxter/advent-of-code/blob/master/2023/js/day04.js

• advent-of-code-2023

  3 3 8.4 Common Lisp

  Common lisp solutions to Advent of Code 2023 (by bo-tato)

full code: https://github.com/bo-tato/advent-of-code-2023/blob/main/day4/day4.lisp

• aoc2023

  2 0 7.1 C++

• advent2023

  1 0 8.7 PHP

Code

• adventofcode2023

  1 3 7.8 C#

Source

• aoc-2023

  1 5 8.7 Haskell

Solution on GitHub; video on YouTube.

• advent-of-code-kotlin-solutions

  3 3 8.8 Kotlin

  My solutions to AoC puzzles in Kotlin.

AocKt Y2023D04

• AdventOfCode2023

  4 0 6.1 Kotlin

• Advent-of-Code-2023

  3 0 5.9 Rust

• AoC2023

  4 1 7.5 Python

  My solutions to Advent of Code 2023 https://adventofcode.com/2023 (by PetchyAL)

• advent-of-code-2023

  6 3 7.6 Go

  Solution in Go (Golang) for Advent of Code 2023 (by silverark)

[LANGUAGE: Go] https://github.com/silverark/advent-of-code-2023/tree/master/day4

• adventofcode

  10 0 8.0 Python

  Advent of Code Repo for Zach Attakk (by ZachAttakk)

Part 1

• AdventofCode2023

  6 2 8.9 C++

  My advent of code code :) (by FinalFlashLight)

• AdventOfCode2023

  1 0 6.8 Python

[LANGUAGE: Python] https://github.com/CakeDayZ/AdventOfCode2023/blob/main/day4.py

• advent-of-code

  3 1 8.3 Julia

  My solutions to https://adventofcode.com problems (by TomWagg)

Github

• adventofcode2023

  7 0 8.3 Rust

Code

• AdventOfCode

  10 3 8.7 Rust

  Multiple years of Advent of Code solutions. (by SwampThingTom)

Scratchcards.rs

• advent-of-code

  1 2 8.1 Python

  Repository for my Advent of Code answers (by CalSimmon)

GitHub Link to Solution

• advent-of-code

  1 - -

GitLab

• advent-of-code-2023

  2 1 10.0 Rust

  Discontinued Doing every day of advent of code in a different programming language! (by JJWRoeloffs)

Challenging myself to do it in a different language every day, starting out with some more niche languages. Github

• advent-of-code

  1 0 6.9 Racket

• adventofcode

  1 0 5.5 Go

• advent-of-rust-2023

  1 1 7.3 Rust

  Advent of Code 2023 solutions, Rust as always

Code

• Advent-of-Code-2023

  5 0 7.7 C++

  Solutions for Advent of Code 2023 (by FCayouette)

cpp file on GitHub

• aoc2023

  4 1 7.7 Python

  My Advent of Code 2023 solutions (by hugseverycat)

Here's my solution: https://github.com/hugseverycat/aoc2023/blob/master/day04.py

• Advent-Of-Code-2023

  1 0 8.4 Python

  These are my solutions for Advent of Code 2023 (by teismar)

• AdventOfCode2023

  3 1 6.9 Perl

Full program on GitHub and blog post about the problem

• AoC2023

  1 2 6.6 C

  Standalones C solutions for AoC2023 (by Ily3s)

[LANGUAGE: C] C standalone

• AdventOfCode2023

  1 0 5.0 SQLPL

  SQL Solutions to Advent of Code 2023 (by VeritableHero)

• Advent-of-code-2023

  1 0 10.0 Kotlin

Github

• advent_of_code

  2 0 7.8 Clojure

  Advent of Code attempts (by loopdreams)

• adventofcode

  5 9 0.0 Python

  Solution implementations to https://adventofcode.com puzzles (by codertee)

Counter was useful here: github

• advent

  17 5 6.5 Go

  Solutions to https://adventofcode.com/ (by tsenart)

No heap allocations: https://github.com/tsenart/advent/blob/master/2023/4

• adventOfCode2023

  1 0 8.3 Go

  Advent of Code 2023 Solutions in Golang (by Static-Flow)

• advent-of-code-2023

  1 0 7.3 Java

  My answers for the 2023 Advent of Code (by ZapDos7)

[LANGUAGE: Java] - solutions for parts 1 + 2 - github

• advent-of-code

  3 2 3.2

  Trying to solve https://adventofcode.com/ (by ThePituLegend)

[LANGUAGE: SystemVerilog] This year, I'm trying to solve AoC using SystemVerilog + CoCoTB/Verilator. 3/4 days, going strong! Link to Github - Day 4

• Pike

  9 189 9.7 C

  Pike is a dynamic programming language with a syntax similar to Java and C. It is simple to learn, does not require long compilation passes and has powerful built-in data types allowing simple and really fast data manipulation. (by pikelang)

  

[LANGUAGE: Pike] (see https://pike.lysator.liu.se/)

• advent-of-code-2023

  5 0 8.1 Rust

  Advent of Code 2023 (Rust) (by bozdoz)

• advent-of-code

  1 2 6.6 Rust

  Resolutions of Advent of Code in Rust (by gil0mendes)

GitHub

• aoc-2023

  1 0 6.7 C++

  C++17 solutions to the Advent of Code 2023 coding puzzles (https://adventofcode.com/2023). (by charlescochran)

github, 1148 microseconds (both parts together)

• advent-2023

  3 0 6.7 JavaScript

• aoc-zig

  2 0 7.9 Zig

Part 1 and Part 2

• aoc-2023

  1 0 9.0 JavaScript

  advent of code 2023 (by beakerandjake)

github

• puzzles

  2 1 7.7 Haskell

• recursion-schemes

  20 335 4.9 Haskell

  Generalized bananas, lenses and barbed wire

  

Reasonably proud of my part 2 solution, although would like to try using a recursion scheme rather than unstructured recursion:

• Advent-Of-Code

  12 19 8.5 Python

Part1 and part2

• advent-of-code-2023

  1 1 7.5 TypeScript

  My journey through Advent of Code 2023 (by lucasteng123)

Github

• Aoc2023

  8 0 7.8 Rust

Slightly better spaced version here

• AdventOfCode

  2 0 7.0 Rust

  Solutions to Advent of Code (by loarabia)

python solution with some type hinting. Part 2 could be sped up with some cache of values instead of calculating sets over and over agin. GitHub

• AdventOfCode

  1 0 8.1 Lua

  Mis soluciones de los retos de advent of code (by DeybisMelendez)

Github

• Advent-Calendar

  1 0 6.8 Python

Solution

• Advent-of-Code

  1 1 8.3 Python

Part 1: https://github.com/TheBlackOne/Advent-of-Code/blob/master/2023/Day4_1.py

• snippets

  240 - -

View formatted on GitLab

• adventofcode

  59 6 8.5 Julia

  Advent of Code challenge solutions (by flwyd)

[Language: Jsonnet] (on GitHub)

• jsonnet

  48 6,753 8.4 Jsonnet

  Jsonnet - The data templating language

  

[Language: Jsonnet] (on GitHub)

• aoc2023

  1 0 4.2 Jupyter Notebook

part1

• AdventOfCode

  1 0 4.6 TypeScript

  Advent of Code Solutions (by LeinadAsid)

Solution - Github

• advent-of-code-2023

  4 0 8.9 Go

  My Advent of Code 2023 Solutions (Go, Python and Typescript) (by torbensky)

Python: https://github.com/torbensky/advent-of-code-2023/blob/main/day04/solution.py

• aoc

  1 1 8.2 JavaScript

  Advent of Code 2023 (by gigobyte)

Solved using types only: solution

• aoc2023-swift

  1 0 7.8 Swift

  Solutions for Advent Of Code 2023 in swift

code

• AdventOfCode-2023

  1 0 7.2 Java

  Solving Advent of Code 2023 in Java (by SAMURAii-7)

Solution(Both Parts)

• Advent-of-Code

  1 2 9.3 Kotlin

[Pretty happy with the cleanliness of the code](https://github.com/Will-McBurney/AOC-2023/blob/master/src/main/kotlin/year23/day4/Main.kt), but it feels like the difficulty is all over the place right now.

• Advent-Of-Code-2023

  5 0 8.6 Haskell

  AoC 2023 solutions in Haskell (by daysleeperx)

Github

• adventofcode

  4 0 8.4 C++

on Github

• advent-of-code-23

  3 0 8.3 Rust

  Helping the elves in winter, one language at a time. (by EshaanAgg)

[Language: Rust] Source Code

• advent-of-code-2023

  1 1 6.1 C#

  My solutions for Advent of Code 2023, written in C#. (by igorzavojchevski)

Day04 in C#.

• AdventOfCode2023

  7 1 8.9 Jupyter Notebook

  AdventOfCode2023 (by marcodelmastro)

• advent-of-code

  5 8 7.7 JavaScript

  :santa: :christmas_tree: :snowman: http://adventofcode.com/ solutions (by tlareg)

• adventOfCode

  17 6 7.5 Python

Part 1: set intersection

• advent-of-code-2023

  8 7 9.9 Haskell

  Haskell (and Swift) solutions to Advent of Code 2023

Here is a link to the source code on GitHub, both the normal one and the minified "punch-card" one.

• aoc

  1 3 7.3 GDScript

  🎄Advent of Code in Godot using GDScript (by anthonyec)

Solution to Part 1 and 2

• adventofcode

  8 0 6.9 Fortran

  Advent of Code solutions. (by ejrsilver)

• advent-of-code

  7 1 9.5 Rust

  Advent of Code (by MichaelBrunn3r)

• AdventOfCode2023

  3 0 8.2 JetBrains MPS

  Advent of Code 2023 solutions (by johnpmay)

github link

• adventofcode

  86 16 7.3 TypeScript

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

[LANGUAGE: TypeScript] Github - Under 40 lines, all parts running under 8ms.

• aoc

  4 1 10.0 Rust

  Discontinued Advent of Code solutions written in Rust. (by skifli)

• advent-of-code

  2 0 7.7 Java

Full code is on Github

• AOC23-Day4-scratchcards

  1 0 4.4 Makefile

github

• advent-of-code-2023

  2 2 8.1 Rust

  Solutions to Advent of Code 2023 puzzles https://adventofcode.com/2023 (by Lysander6)

github

• aoc-2023

  6 0 10.0 Fortran

  Discontinued My Advent of Code 2023 Solutions [Moved to: https://github.com/AJMansfield/aoc] (by AJMansfield)

• advent-of-code-2023

  1 0 6.2 TypeScript

  First time tackling the advent of code challenge. Lets go! (by qzhang1)

• AoC2023

  2 0 8.1 Rust

  Advent of Code 2023 solutions (by sputnick1124)

Much better commented version here

• adventofcode2023

  2 0 6.6 PHP

Solution in PHP for day 4: https://github.com/mariush-github/adventofcode2023/blob/main/04.php

• AOC2023

  8 0 8.2 Perl

  Advent of Code 2023 (by wlmb)

• AoC2023-python

  1 8 7.6 Python

  My Python solutions for the Advent of Code 2023 event (https://adventofcode.com/2023)

GitHub (15/16 lines with a focus on readability)

• advent-of-code

  3 1 3.3 Lua

  Advent of Code Solutions 🎄 (by samyuh)

• adventofcode

  14 4 6.6 Python

[Language: Go] solution (Both Parts)

• advent

  1 0 7.4 Go

  Learning Go with Adventofcode (by Moopinger)

I ended up with a similar struct. Here are mine.

• AdventOfCode

  2 1 7.5 JavaScript

  My JS solutions for the famous Advent of Code challenges (by KhadidjaArezki)

• AoC23

  2 1 7.4

[LANGUAGE: Onyx] Day 4 Solution

• AoC2023-PowerShell

  1 0 5.6 PowerShell

Part 1: Pretty straightforward. Scan the lines, create 2 arrays. When a match is found, multiply the points by 2 (or add one on the initial draw). Part 2: Used an additional array to store the amount of copies of a card. When a number matches, increase the next card to be increased by the amount of cards of the type that's currently being checked.

• advent-of-code

  8 4 5.7 JavaScript

  My solutions to the Advent of Code puzzles (by hiimjustin000)

• Advent-Of-Code-2023

  2 0 6.5 Swift

  Solutions to AoC 2023 in Swift (by Jomy10)

source

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