[leetcode]12. Integer to Roman(Java)

https://leetcode.com/problems/integer-to-roman/#/description

Given an integer, convert it to a roman numeral.

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

package go.jacob.day716;

public class Demo1 {
public String intToRoman(int num) {
int[] values = { 1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1 };
String[] strs = { "M", "CM", "D", "CD", "C", "XC", "L", "XL", "X", "IX", "V", "IV", "I" };

StringBuilder sb = new StringBuilder();

for (int i = 0; i < values.length; i++) {
while (num >= values[i]) {
num -= values[i];
sb.append(strs[i]);
}
}
return sb.toString();
}

}