LeetCode 刷题 12. 整数转罗马数字

LeetCode 刷题 12. 整数转罗马数字

题目链接点此

class Solution:
    def intToRoman(self, num: int) -> str:
        list1=['M','CM','D','CD','C','XC','L','XL','X','IX','V','IV','I']
        list2=[1000,900,500,400,100,90,50,40,10,9,5,4,1]
        str1 = ""
        for i in range(len(list2)):
            while num >= list2[i]:
                str1+=list1[i]
                num -= list2[i]
        return str1

思路：遍历list2，当传入数字num大于等于list2中的某一个值时，str1就加上list1中对于的值，直到传入的num值为0