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Advent of Code Leaderboard 2024 / Day 13

View puzzle on adventofcode.com

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Leaderboard

Name Language Tokens Sum Tokens Part 1 Tokens Part 2 Last change
1 Profile imageFrederik Bonfanti Ruby 196 95 101 7 days ago

Rules

  • You're welcome to participate alone or in a team.
  • You may submit multiple solutions and explore different programming languages.
  • Stick to the standard library of your language, no further dependencies/libraries, except the ones which OneCompiler provides (e.g. NumPy for Python).
  • Ensure your code aligns to the template (Python, Rust, Go, Kotlin, JavaScript, C#, TypeScript, C++, Java, C, Swift, Scala, Ruby, Bash), reading the puzzle input from stdin (terminated with end-of-file), and printing the solution to stdout.
  • Please refrain from making network requests, reading data from files, or storing data in variable/function/class names for reflection.
  • Your code must be able to process all valid Advent of Code inputs. Golfcoder might reevaluate correctness of your solution with different inputs after your submission.

95 tokens in Ruby for part 1 by Frederik Bonfanti

Download solution

puts(ARGF.read.split("\n\n").sumdo
x1,y1,x2,y2,x,y=_1.scan(/\d+/).map&:to_i

div=x1*y2-x2*y1

a=(x*y2-x2*y)/div
b=(x1*y-x*y1)/div

next0unlessa*x1+b*x2==x

3*a+b
end)