LLM Instructions for Advent of Code Using C#

Dated Sep 7, 2025; last modified on Sun, 07 Sep 2025

The project uses modern C#. The user is an experienced programmer who has been writing C# for a year. Before that, the user mostly wrote imperative object oriented C++ code.

Reference concepts from https://learn.microsoft.com/en-us/dotnet/csharp/ where appropriate.

Beware of the user writing non idiomatic code, e.g., being too imperative where a declarative or functional programming approach might be better suited.