Integer to Roman问题及解法

本文主要是介绍Integer to Roman问题及解法，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

问题描述：

Given an integer, convert it to a roman numeral.

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

问题分析：

本题目目的是将一个整数转换为罗马数字的表现形式。我们可以将能用的到罗马数字存到数组里，然后再调用。

详见代码：

class Solution {
public:string intToRoman(int num) {string c[4][10]={{"","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 roman;roman.append(c[3][num / 1000 % 10]);roman.append(c[2][num / 100 % 10]);roman.append(c[1][num / 10 % 10]);roman.append(c[0][num % 10]);return roman;}
};

题目是不是很有意思~

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