12.整数转罗马数字.py

#
# @lc app=leetcode.cn id=12 lang=python3
#
# [12] 整数转罗马数字
#

# @lc code=start
class Solution:
    def intToRoman(self, num: int) -> str:

        a, b, c, d = num//1000, num % 1000//100, num % 100//10, num % 10

        qian = ['', 'M', 'MM', 'MMM']
        bai = ['', 'C', 'CC', 'CCC', 'CD', 'D', 'DC', 'DCC', 'DCCC', 'CM']
        shi = ['', 'X', 'XX', 'XXX', 'XL', 'L', 'LX', 'LXX', 'LXXX', 'XC']
        ge = ['', 'I', 'II', 'III', 'IV', 'V', 'VI', 'VII', 'VIII', 'IX']

        res = qian[a]+bai[b]+shi[c]+ge[d]

        return res

# @lc code=end