0012-Integer-to-Roman.py

class Solution:
    def intToRoman(self, num: int) -> str:
        vals = [ 1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1 ]
        romans = [ "M", "CM", "D", "CD", "C", "XC", "L", "XL", "X", "IX", "V", "IV", "I" ]
        res = ""
        for i, v in enumerate(vals):
            res += (num // v) * romans[i]
            num %= v
        return res