🎄 Advent of Code 2025 Solutions 🎄

✅ Progress Status

Day	Title	Status (Part 1)	Status (Part 2)
01	Secret Entrance (Safe Dial)	⭐ Completed	⭐ Completed
02	Gift Shop (Repeated IDs)	⭐ Completed	⭐ Completed
03	Lobby (Max Joltage Sequence)	⭐ Completed	⭐ Completed
04	Printing Department (Forklift Access)	⭐ Completed	⭐ Completed
05	Puzzle 5	⭐ Completed	⭐ Completed
06	Puzzle 6	⭐ Completed	⭐ Completed
07	Puzzle 7	⭐ Completed	⭐ Completed
08	Puzzle 8	⭐ Completed	⭐ Completed
09	Puzzle 9	⭐ Completed	⭐ Completed
10	Puzzle 10	⭐ Completed	⭐ Completed
11	Puzzle 11	⭐ Completed	⭐ Completed
12	Puzzle 12	⭐ Completed	⭐ Completed

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🛠️ Technology Stack

• Primary Language: Java (JDK 23+)
• Environment: Fedora 42 (KDE Plasma)
• IDE/Editor: Visual Studio Code
• Version Control: Git / GitHub CLI (gh)

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📂 Repository Structure

Each day's problem is organized into its own folder. All solutions are written in Java and utilize standard input redirection for puzzle input.

. ├── Day01/ │ ├── Day1.java │ ├── Day1Part2.java │ └── input.txt ├── Day02/ ├── Day03/ ├── Day04/ ├── Day05/ ├── Day06/ ├── Day07/ ├── Day08/ ├── Day09/ ├── Day10/ ├── Day11/ └── Day12/ ├── Day12.java └── input12.txt

...

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🚀 How to Run a Solution

To compile and run any solution (e.g., Day 4, Part 2) locally using the standard input redirection method established in the terminal:

1. Navigate to the specific day's folder (e.g., Day04):

   cd Day04

2. Compile the Java file:

   javac Day4Part2.java

3. Execute the compiled class, redirecting the puzzle data from the local input file:

   java Day4Part2 < input4.txt

   (The output will be the final puzzle answer.)