LeetCode 12 整数转罗马数字

Posted 2021-12-11 Starzkg

https://leetcode-cn.com/problems/integer-to-roman/

解决方案

class Solution {
    int[] values = {1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1};
    String[] symbols = {"M", "CM", "D", "CD", "C", "XC", "L", "XL", "X", "IX", "V", "IV", "I"};

    public String intToRoman(int num) {
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < values.length && num > 0; i++) {
            while (num >= values[i]) {
                sb.append(symbols[i]);
                num -= values[i];
            }
        }
        return sb.toString();
    }
}