整数转罗马数字
思路: https://leetcode-cn.com/problems/integer-to-roman/solution/tan-xin-suan-fa-by-liweiwei1419/ class Solution(object): def intToRoman(self, num): """ :type num: int :rtype: str """ numbers = [('M',1000), ('CM',900), ('D',500), ('CD',400), ('C',100), ('XC',90), ('L',50), ('XL',40), ('X',10), ('IX',9), ('V',5), ('IV',4), ('I',1)] res = [] for s, n in numbers: if num == 0: break elif num >= n: res += [s]*(num//n) num %= n return ''.join(res) 来源: https://www.cnblogs.com/dolisun/p/11520663.html