#!/usr/bin/env swift;
/******************************************************************************
 * This program converts integers to Roman Numerals.
 * 
 * Copyright © 2017 Richard Lesh.  All rights reserved.
 *****************************************************************************/

import Foundation

var romanSymbol:[String] = ["I", "IV", "V", "IX", "X", "XL", "L", "XC", "C", "CD", "D", "CM", "M"]
var values:[Int] = [1, 4, 5, 9, 10, 40, 50, 90, 100, 400, 500, 900, 1000]

func convertToRomanNumerals(_ i:Int) -> String {
    var result:String = ""
    var value:Int = i

    var currentPosition:Int = values.count - 1
    while value > 0 {
        if value >= values[currentPosition] {
            result += romanSymbol[currentPosition]
            value -= values[currentPosition]
        } else {
            currentPosition -= 1
        }
    }
    return result
}

func main() -> Void {
    for i:Int in 0...2500 {
        print(String(i) + " = " + convertToRomanNumerals(i))
    }
    exit(EXIT_SUCCESS)
}
main()