Zig Advent of Code 2025

Project Overview

A Zig programming language implementation for solving Advent of Code 2025 puzzles

Key Details

• Event: Advent of Code 2025
• Programming Language: Zig
• Repository: https://github.com/zwolsman/zig-aoc
• Event Website: https://adventofcode.com/2025

Important Changes for 2025

Puzzle Format

• 12 puzzles will be released (reduced from previous years' 25 puzzles)
• Puzzles unlock daily from December 1st at midnight EST (UTC-5)

Getting Started

Prerequisites

• Zig (0.15.1)
• Git

Clone the Repository

git clone https://github.com/zwolsman/zig-aoc.git
cd zig-aoc

Running Solutions

Run all solutions by running the following command

zig build run

Running a specific solution can be done by the following command

zig build run -- -day {day_number}

Project Structure

zig-aoc/
│
├── src/
│   ├── main.zig
│   └── solutions/
│       ├── day1.zig
│       ├── day2.zig
│       └── ...
│
├── inputs/
│   ├── day1.txt
│   ├── day2.txt
│   └── ...
│
└── README.md

Community and Resources

• Advent of Code 2025 Official Website
• Advent of Code Subreddit

Disclaimer

• Respect the Advent of Code guidelines
• AI-assisted solutions are discouraged by the event organizers