Advent Of Code 2024 Day 21 Answers. Kotlin solutions to parts 1 and 2 of advent of code 2023, day 21: Just like with day 21, i use the matrix divide primitive (⌹) that gets the solutions for the system of equations.

===== it’s coding practice on steroids. I didn’t bother writing a more general solution that would calculate those magic numbers using the code for part 1.