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