🎄 Advent of Code 2015 🎄

A collection of solutions for the Advent of Code 2015 programming puzzles. I'm going to attempt these in Picat and maybe other languages if the mood is right.

I didn't solve these puzzles in 2015 so am in no rush to complete them every day, but feel free to check out my 2020 and 2021 repos which were mostly done in Haskell.

I'd recommend the Advent of Code to anyone -- they're really fun and interesting puzzles, and I've learned a lot from doing them.

Other years

• 2019 (unfinished, will resume later...)
• 2020 (mostly Haskell, one or two in Rust, Python and zz)
• 2021 (all Haskell except day 24 in Picat)
• 2022 (mostly Nim with a couple of Picat programs)
• 2023 (mostly Picat with a couple of Nim programs)

Current code stats with cloc

───────────────────────────────────────────────────────────────────────────────
Language                     Files       Lines     Blanks    Comments      Code
───────────────────────────────────────────────────────────────────────────────
Picat                           40        2647        303         115      2229
Plain Text                      28        3083          4           0      3079
Markdown                        21         659        248           0       411
Nim                              2          37          8           0        29
License                          1          21          5           0        16
gitignore                        1           4          0           0         4
───────────────────────────────────────────────────────────────────────────────
Total                           93        6451        568         115      5768
───────────────────────────────────────────────────────────────────────────────
Processed 216668 bytes, 0.217 megabytes (SI)
───────────────────────────────────────────────────────────────────────────────

Retrospectives

• Day 1: Not Quite Lisp
• Day 2: I Was Told There Would Be No Math
• Day 3: Perfectly Spherical Houses in a Vacuum
• Day 4: The Ideal Stocking Stuffer
• Day 5: Doesn't He Have Intern-Elves For This?
• Day 6: Probably a Fire Hazard
• Day 7: Some Assembly Required
• Day 8: Matchsticks
• Day 9: All in a Single Night
• Day 10: Elves Look, Elves Say
• Day 11: Corporate Policy
• Day 12: JSAbacusFramework.io
• Day 13: Knights of the Dinner Table
• Day 14: Reindeer Olympics
• Day 15: Science for Hungry People
• Day 16: Aunt Sue
• Day 17: No Such Thing as Too Much
• Day 18: Like a GIF For Your Yard
• Day 19: Medicine for Rudolph
• Day 20: Infinite Elves and Infinite Houses
• Day 21: RPG Simulator 20XX
• Day 22: ?
• Day 23: ?
• Day 24: ?
• Day 25: ?