https://github.com/mkulak/adventofko2023

Advent of code 2023 solutions in Kotlin
https://github.com/mkulak/adventofko2023

advent-of-code advent-of-code-2023 aoc-2023-in-kotlin kotlin

Last synced: 18 days ago
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Advent of code 2023 solutions in Kotlin

• Host: GitHub
• URL: https://github.com/mkulak/adventofko2023
• Owner: mkulak
• Created: 2023-12-01T14:52:12.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2023-12-17T19:46:21.000Z (about 1 year ago)
• Last Synced: 2023-12-18T17:52:40.496Z (about 1 year ago)
• Topics: advent-of-code, advent-of-code-2023, aoc-2023-in-kotlin, kotlin
• Language: Kotlin
• Homepage:
• Size: 203 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
Advent of Code 2023

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Solutions for [aoc 2023](https://adventofcode.com/2023)

All code is in Kotlin 1.9

Featured solutions:

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* [Day 10](src/main/kotlin/Day10.kt) - unreadable due to code golf but kinda cool. It also produces nice visual: ![day 10 viz](pics/day10.png)

* [Day12](src/main/kotlin/Day12.kt) - that one was really hard for me, I struggled a lot. 

Memoizing function by wrapping its body with `cache.getOrPut(key) { ... }` was fun.

* [Day15](src/main/kotlin/Day15.kt) - super straightforward due to LinkedHashMap being part of std, 

I feel sorry for langs that don't have it

* [Day17](src/main/kotlin/Day17.kt) - nice viz as well ![day 17 viz](pics/day17.png)

* [Day18](src/main/kotlin/Day18.kt) - I was able to find bug due to visualization: ![day 18 viz](pics/day18.png)

* [Day20](src/main/kotlin/Day20.kt) - For part 2 I just eye-balled the data, came up with a hacky idea 

and did several runs to calculate different periods. No clue how to solve it in general case

Part 2 of days 21, 23 and 24 is beyond my comprehension. I have 0 clue how to solve it.  

![](pics/main.png)