README.md

FizzBuzz

A simple Elixir application to process numbers from a file and apply the FizzBuzz logic.

Features

• Reads numbers from a file.
• Applies the FizzBuzz logic:
  • Replaces multiples of 3 with "Fizz".
  • Replaces multiples of 5 with "Buzz".
  • Replaces multiples of both 3 and 5 with "FizzBuzz".
• Handles errors gracefully when reading files or processing invalid inputs.

Installation

1. Clone the repository:

   git clone https://github.com/nikumu/fizzbuzz.git
   cd fizzbuzz

2. Install dependencies:

   mix deps.get

3. Run the tests (optional):

   mix test

Usage

To use the application, create a file with numbers separated by commas (e.g., input.txt):

1,2,3,4,5,15

Then, run the application:

iex -S mix
Fizzbuzz.build("input.txt")

Example

Input file (input.txt):

3,5,15,7

Output:

["Fizz", "Buzz", "FizzBuzz", 7]

Project Structure

• lib/fizzbuzz.ex: Contains the main logic for reading files and processing FizzBuzz.
• test/fizzbuzz_test.exs: Unit tests for the FizzBuzz functionality.