Rosetta Code

Roman numerals/Encode

Convert an integer to its Roman numeral representation.

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Sourcerosettacode/popular/roman_numerals_encode.vibe
def to_roman(number: int) -> string
  values = [1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1]
  symbols = ["M", "CM", "D", "CD", "C", "XC", "L", "XL", "X", "IX", "V", "IV", "I"]

  result = ""
  remaining = number
  index = 0

  while index < values.length
    while remaining >= values.fetch(index)
      result = result + symbols.fetch(index)
      remaining = remaining - values.fetch(index)
    end
    index = index + 1
  end

  result
end

def run -> array<{ number: int, roman: string }>
  numbers = [1, 4, 9, 14, 42, 99, 2024, 1776, 3999]
  results: array<{ number: int, roman: string }> = []
  i = 0
  while i < numbers.length
    results.push({ number: numbers.fetch(i), roman: to_roman(numbers.fetch(i)) })
    i = i + 1
  end
  results
end

Output

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