Integer to Roman

最新推荐文章于 2022-07-26 11:13:15 发布

原创最新推荐文章于 2022-07-26 11:13:15 发布 · 611 阅读

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本文提供了一种将整数转换为罗马数字的方法。输入范围保证在1到3999之间。通过定义数值与对应的罗马符号，使用减法原理递减数值并拼接相应的罗马符号。

Given an integer, convert it to a roman numeral.

Input is guaranteed to be within the range from 1 to 3999.

public class Solution {
    public String intToRoman(int number) {
        int[] values = {1000, 900, 500, 400, 100,90, 50, 40, 10, 9, 5, 4, 1 };
        String[] numerals = {"M", "CM", "D", "CD", "C", "XC", "L", "XL", "X", "IX", "V", "IV", "I" };
        StringBuilder result = new StringBuilder();
        for (int i = 0; i < values.length; i++) {
            while (number >= values[i]) {
                number -= values[i];
                result.append(numerals[i]);
            }
        }
        return result.toString();
    }
}

Reference: http://www.blackwasp.co.uk/NumberToRoman.aspx