Java-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.
将阿拉伯数字转换为罗马字符
建立一个二维数组来代表转换表 代码如下:
public class Solution { public String intToRoman(int num) { String[][] sss={{"I","II","III","IV","V","VI","VII","VIII","IX"},{"X","XX","XXX","XL","L","LX","LXX","LXXX","XC"},{"C","CC","CCC","CD","D","DC","DCC","DCCC","CM"},{"M","MM","MMM"}};String res="";String s=String.valueOf(num);for(int i=s.length()-1;i>=0;i--){if(s.charAt(i)=='0')continue;else{res=sss[s.length()-1-i][s.charAt(i)-'0'-1]+res;}}return res; }}
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