🪙 Coin Flip Simulator

A simple Rust program that simulates flipping a fair coin multiple times and reports the results with percentages.

✨ Features

• Simulates flipping a coin (Heads or Tails).
• Keeps track of the number of times each side comes up.
• Calculates percentages of outcomes.
• Uses closures to handle coin flip events flexibly.

📦 Requirements

• Rust (edition 2021 or newer)
• rand crate

Add rand to your Cargo.toml:

[dependencies]

rand = "0.9.2"

▶️ Usage

Clone the repository and run the program:

cargo run

Example output:

Out of 100:
Heads: 50 (50.00%)
Tails: 50 (50.00%)

🛠 Project Structure

src/
├── lib.rs   # Library code (coin enum, flip logic, percentage calculation)
└── main.rs  # Entry point, runs the simulation

📖 How It Works

1. flip_coin generates a random Heads or Tails.
2. A closure (handler) processes the result (e.g., counting outcomes).
3. After all runs, the program calculates and prints percentages.

🔮 Possible Improvements

• Add support for multiple coins at once.
• Write unit tests for the coin flip logic.
• Provide a histogram of results for large runs.

📜 License

This project is open source and available under the MIT License.