Ad
minotraurvs.LuisZapataYamo

Decimal numbers to Roman numerals

Basic Language Features
Fundamentals
Control Flow
Code
Diff
  • def convert_decimal_roman(numero):
    num_romanos_dic = {
        1: 'I',
        5: 'V',
        10: 'X',
        50: 'L',
        100: 'C',
        500: 'D',
        1000: 'M'
    }
    list_num_rom = [{'key': x, 'value': y} for x, y in num_romanos_dic.items()]
    size_num = len(numero)
    output = []
    for i in range(size_num):
        num =  numero[i:]
        num_unit = int(num)
        numextre_izq = int(num[0])
        pref = []
        for i in range(1, len(list_num_rom), 2):
            if num_unit >= list_num_rom[i-1]['key'] and num_unit < list_num_rom[i+1]['key']:
                pref.append(list_num_rom[i-1]['value'])
                pref.append(list_num_rom[i]['value'])
                pref.append(list_num_rom[i+1]['value'])

        if numextre_izq < 4 and numextre_izq > 0:
            output.append(pref[0]*numextre_izq)
        if numextre_izq == 4:
            output.extend(pref[0:2])
        if numextre_izq == 5:
            output.append(pref[1])
        if numextre_izq > 5 and numextre_izq < 9:
            output.append(pref[1] + pref[0]*(numextre_izq-5))
        if numextre_izq == 9:
            output.extend(pref[::2])

    output = ''.join(output)
    return output