Advent of Code

This repository contains my solutions to the annual Advent of Code challenge, implemented in C.

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Repository Structure

.
├── 2024/
│   ├── aoc.h
│   ├── day01/
│   │   ├── day01.c
│   │   ├── Makefile
│   │   └── data/
│   │        ├── test.txt
│   │        └── input.txt
│   ├── day02/
│   │   └── ...
│   └── ...
├── ...
├── template/
│   ├── aoc.h
│   └── dayXX/
│       ├── dayXX.c
│       ├── Makefile
│       └── data/
│            ├── test.txt
│            └── input.txt
└── README.md

• Each year folder contains several day<XX> directories.
• Each day directory builds a single executable in the same folder.
• Each day has its own data/ directory containing:
  • test.txt (example input from the AoC website)
  • input.txt (your personal puzzle input)

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Requirements

• GCC / Clang / MSVC supporting C99
• Make

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Build

Each day solutions is an independent program with its own Makefile.

Move to the corresponding day directory :

cd <YEAR>/day<DAY_NUMBER>

Build the solution :

make build

The executable will automatically load its input from the local data/ directory.

You can build the solution to use the test input :

make test

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Execution

Run the executable :

make run

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Cleaning

Clean generated files (executable, dependency) :

make clean

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Adding a New Year

To add another year:

1. Create a new directory with the correct year
2. Copy all contents from the template directory into the new directory
3. Edit the define AOC_YEAR in the header file aoc.h
4. Rename the day directory and source file.
5. Edit the define AOC_DAY in the source file.

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Author

Raphael CAUSSE