Advent of Code 2025#

in which I attempt to use a different language every day

Rules#

• If I've already used a language, no using it on a subsequent day
• Languages can't be too similar (e.g. Python 3 and Python 2 count as the same language)
• If I have to switch languages for part 2, both languages are "used up"
• Try to use the weirdest/most difficult/most unfamiliar language I think I'm capable of solving the puzzle in (within a reasonable timeframe)
• If a language has limited input facilities and requires another language to preprocess the input, that other language doesn't count as used

Languages#

1. LLVM IR
2. jq
3. PostScript
4. Uiua
5. JVM bytecode
6. LaTeX
7. sed
8. Noulith
9. Picat
10. Hy
11. GNU Octave
12. fasmg macros