12. Integer to Roman 整数转罗马数字

Posted 2020-10-24 Long Long Journey

Given an integer, convert it to a roman numeral.

Input is guaranteed to be within the range from 1 to 3999.

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class Solution:     def intToRoman(self, num):         """         :type num: int         :rtype: str         """         I = [‘‘, ‘I‘, ‘II‘, ‘III‘, ‘IV‘, ‘V‘, ‘VI‘, ‘VII‘, ‘VIII‘, ‘IX‘]         X = [‘‘, ‘X‘, ‘XX‘, ‘XXX‘, ‘XL‘, ‘L‘, ‘LX‘, ‘LXX‘, ‘LXXX‘, ‘XC‘]         C = [‘‘, ‘C‘, ‘CC‘, ‘CCC‘, ‘CD‘, ‘D‘, ‘DC‘, ‘DCC‘, ‘DCCC‘, ‘CM‘]         M = [‘‘, ‘M‘, ‘MM‘, ‘MMM‘]         thousand = num // 1000         houndred = (num % 1000) // 100         ten = (num % 100) // 10         digit = num % 10         return M[thousand] + C[houndred] + X[ten] + I[digit]     s = Solution() # num = 1 # num = 19 # num = 99 # num = 100 num = 409 #num = 1999 res = s.intToRoman(num) print(res)

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