题目描述
Given an integer, convert it to a roman numeral.
Input is guaranteed to be within the range from 1 to 3999.
code: public class Solution { public String intToRoman(int num) { int[] number = {1000, 900, 500, 400, 100,90, 50, 40, 10, 9, 5, 4, 1}; String[] flags = {"M","CM", "D", "CD", "C", "XC", "L", "XL", "X", "IX", "V", "IV", "I"}; StringBuilder sn = new StringBuilder(); for(int i = 0 ; i < number.length ; i++) { while(num >= number[i]) { num -= number[i]; sn.append(flags[i]); } } return sn.toString(); } }