LeetCode Integer to Roman数字转成罗马数字

来源:互联网 发布:数据产品经理面试题目 编辑:程序博客网 时间:2024/06/05 06:04

Given an integer, convert it to a roman numeral.

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

 

把数字转换成为罗马数字,一般我们都不太熟悉罗马数字,所以只能Wiki一下了:http://en.wikipedia.org/wiki/Roman_numerals

 

程序是入门级的了:

class Solution {public:string intToRoman(int num) {int digits[] = {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"};string result;int i = 0;while (num > 0){int times = num / digits[i];num -= times*digits[i];for (int j = 0; j < times; j++){result += symbols[i];}++i;}return result;}};


 

原创粉丝点击