fork download
copy 
  1. #! user/bin/env python
  2. # -*- encoding: utf-8 -*-
  3.  
  4. numeracion = {"I": 1, "IV": 4, "V": 5, "X": 10, "XL": 40, "L": 50, "XC": 90, "C": 100, "CD": 400, "D": 500, "CM": 900}
  5. unidades = ["I", "IV", "V", "IX"]
  6. decenas =  ["X", "XL", "L", "XC"]
  7. centenas = ["C", "CD", "D", "CM"]
  8.  
  9.  
  10. class numero_a_Romano(object):
  11.     def __init__(self, num=0):
  12.         self.num = num
  13.         self.out = None
  14.         if num > 0:
  15.             self.setNum(num)
  16.         else:
  17.             self.num = 0
  18.  
  19.     def __str__(self):
  20.         return self.out
  21.  
  22.     def __add__(self, other):
  23.         return numero_a_Romano(self.num + other.num)
  24.  
  25.     def __sub__(self, other):
  26.         return numero_a_Romano(self.num - other.num)
  27.  
  28.     def transform(self, num, out):
  29.         if num == 9:
  30.             self.out = "{0}{1}".format(self.out, out[3])
  31.             num = 0
  32.         elif num >= 5:
  33.             self.out = "{0}{1}".format(self.out, out[2])
  34.             num -= 5
  35.         elif num == 4:
  36.             self.out = "{0}{1}".format(self.out, out[1])
  37.             num = 0
  38.         if num > 0:
  39.             self.out = "{0}{1}".format(self.out, out[0] * num)
  40.  
  41.     def conversor(self):
  42.         aux = 1
  43.         digitos = -1
  44.  
  45.         while aux <= self.num:
  46.             digitos += 1
  47.             aux *= 10
  48.  
  49.         if digitos < 3:
  50.             num = self.num
  51.             for i in range(0, digitos + 1):
  52.                 posN = 10 ** (digitos - i)
  53.                 aux = int(num / posN)
  54.                 if posN == 1:
  55.                     self.transform(aux, unidades)
  56.                 elif posN == 10:
  57.                     self.transform(aux, decenas)
  58.                 elif posN == 100:
  59.                     self.transform(aux, centenas)
  60.                 num %= posN
  61.         else:
  62.             self.out = None
  63.  
  64.     def setNum(self, num):
  65.         self.num = num
  66.         self.out = ""
  67.         self.conversor()
  68.  
  69.     def getNum(self):
  70.         return self.out
  71.  
  72.  
  73. class romano_a_numero(object):
  74.     def __init__(self, num=""):
  75.         self.num = num.upper()
  76.         self.out = 0
  77.  
  78.         if(self.num != ""):
  79.             self.conversor()
  80.  
  81.     def __str__(self):
  82.         return str(self.out)
  83.  
  84.     def busqueda(self, key):
  85.         try:
  86.             r = numeracion[key]
  87.             return r > 0
  88.         except KeyError:
  89.             return False
  90.  
  91.     def conversor(self):
  92.         aux = self.num
  93.         l = len(aux)-1
  94.         i = 0
  95.  
  96.         while i < l:
  97.             key = "{0}{1}".format(aux[i], aux[i+1])
  98.             if self.busqueda(key):
  99.                 self.out += numeracion[key]
  100.                 i += 1
  101.             else:
  102.                 self.out += numeracion[aux[i]]
  103.             i += 1
  104.         self.out += numeracion[aux[i]]
  105.  
  106.  
  107.  
  108.  
  109. r = numero_a_Romano(943)
  110. r2 = romano_a_numero(r.getNum())
  111.  
  112. print(r)
  113. print(r2)
Success #stdin #stdout 0.02s 6836KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
CMXLIII
943
https://ideone.com/NjKaQh
language:
Python (cpython 2.7.16)
created:
6 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!