Sunday, November 30, 2025

Advent of Code 2025

The Advent of Code will begin in a couple of hours. I've prepared a Common Lisp project to hold the code. You can clone it from https://github.com/jrm-code-project/Advent2025.git It contains an .asd file for the system, a package.lisp file to define the package structure, 12 subdirectories for each day's challenge (only 12 problems in this year's calendar), and a file each for common macros and common functions.

As per the Advent of Code rules, I won't use AI tools to solve the puzzles or write the code. However, since AI is now part of my normal workflow these days, I may use it for enhanced web search or for autocompletion.

As per the Advent of Code rules, I won't include the puzzle text or the puzzle input data. You will need to get those from the Advent of Code website (https://adventofcode.com/2025).

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