Roman Numerals

gistfile1.swift

func doAsTheRomansDoAndNumeralize(number: Int) -> String {
	let numberRepresentation = [1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1]
	let numerals = ["M", "CM", "D", "CD", "C", "XC", "L", "XL", "X", "IX", "V", "IV", "I"]

	var result = ""
	var number = number

	while number > 0 {
		for (index, num) in numberRepresentation.enumerated() {
			if number - num >= 0 {
				number -= num
				result += numerals[index]
				break
			}
		}
	}

	return result
}