https://github.com/guidoschmidt/advent-of-code.2023

Advent of Code 2023 using zig
https://github.com/guidoschmidt/advent-of-code.2023

advent-of-code advent-of-code-2023 advent-of-code-2023-zig zig

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Advent of Code 2023 using zig

• Host: GitHub
• URL: https://github.com/guidoschmidt/advent-of-code.2023
• Owner: guidoschmidt
• Created: 2023-12-08T08:50:10.000Z (11 months ago)
• Default Branch: main
• Last Pushed: 2024-06-07T19:43:26.000Z (5 months ago)
• Last Synced: 2024-06-07T20:59:38.698Z (5 months ago)
• Topics: advent-of-code, advent-of-code-2023, advent-of-code-2023-zig, zig
• Language: Zig
• Homepage:
• Size: 278 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Advent Of Code 2023

### Solutions with [zig](https://ziglang.org/)

1. Install [zig 0.12.0](https://ziglang.org/), preferably using

   [zvm](https://github.com/tristanisham/zvm)

2. Run `zig build run` to select a specific day

3. Run `zig build run -- DAY`, e.g. `zig build run -- 9` to run a specific day 

### Notes

- Day 13

  - Part 1: Brute force

  - Part 2: Dynamic Programming

- Day 14

  - Part 1: solve using recursion

- Day 16

  - Part 1: nasty bug where /<<< would reflect upwards instead of downwards.

    Need to test the single bits and pieces more carefully

- Day 18:

  - Part 1: terminal buffer was too small to draw the whole map, used [pgm file format](https://de.wikipedia.org/wiki/Portable_Anymap#Kopfdaten)

  - Part 2: visualize using svg + calculate using [shoelace formula](https://en.wikipedia.org/wiki/Shoelace_formula)

- Day 19:

  - Part 1: should have been easy, but I suffered from a parsing bug to only

    parse '<' values (annoying)

- Day 23:

  - Part 1: relatively easy, just go through all teh possible routes and count

    the steps, then look for the one with the largest step count

- Day 24:

  - Part 1: straight forward, but understanding how to find if an intersection is in

    the past wasn't quite intuitive. If you think about it it's rather easy,

    just subtract the intersection point from the hailstones positiond and

    compare it's sign with the hailstones velocity.