Integer to Roman
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Given an integer, convert it to a roman numeral.
Input is guaranteed to be within the range from 1 to 3999.
如果不知道罗马数的规则，可以参考罗马数转换为整型数
代码如下：
public class IntegerToRoman {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();}}阅读全文
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