Advent of Code 2022

Advent of Code 2022

C++

C++20 solutions for advent of code 2022.

Variants

Web application
C++ code is compiled into WebAssembly, which can be executed by the browser. The static webpage is hosted on Github pages. Supports drag&drop for files. Input can be edited and result will update live. You could call it an Advent-of-Code-REPL 😎
CMake target: aoc-2020-web. Compile with emscripten (see GitHub action file for an example)
Command line application
A standard command line application, which expects the day and the path to the input file as parameters.
CMake target: aoc-2020-web

Features

low memory usage
good performance
most puzzle solutions are constexpr, thus, they can be validated using static_assert (on some modern compilers, at least)
- except for day 12, since it uses std::setwhich is not yet constexpr-enabled in C++20
Compile-time regular expressions (ctre) for input validation
unit testing (with example inputs)

Supported compilers

Visual Studio 2022
gcc 12 or higher
clang 14 or higher

Building the command line application

Either, open the directory directly in VisualStudio,
or run

Configure CMake: cmake -S . -B build
Build the project
- only the main program: cmake --build build --target aoc-2022-cli
- or, build everything: cmake --build build
Run a specific day (Example: Day 01): build/bin/aoc-2022-cli 01 2022/input/day01.txt