Recipe Calculator

Level: Beginner

Concepts: Edge Cases Algorithms

Implement a recipe calculator that can scale ingredients and convert between different units of measurement. The system should handle various types of ingredients and provide accurate conversions.

Requirements

  1. Scale recipes
    • Multiply or divide ingredient quantities
    • Maintain proper proportions
    • Handle fractional amounts
    • Round to appropriate precision
  2. Convert units
    • Convert between metric and imperial units
    • Handle volume and weight conversions
    • Convert between different measurement systems
    • Handle special cases (e.g., temperature)
  3. Validate inputs
    • Check for valid quantities
    • Validate unit conversions
    • Handle edge cases
    • Provide meaningful error messages

Hint

Start by implementing basic scaling and unit conversion, then add more complex features. Consider using a conversion table or matrix for unit conversions. Think about:

  • Precision and rounding rules
  • Common conversion factors
  • Input validation strategies
  • Error handling approaches
  • Zero or negative ingredient quantities
  • Rounding errors in conversions

Bonus

  • Add support for dietary restrictions
  • Implement ingredient substitution
  • Create a shopping list generator
  • Add nutritional information calculation
  • Support multiple languages and regional units