Integer to Roman

题目描述:

Given an integer, convert it to a roman numeral.

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

 

  这道题我必须炫一下,因为提交一次就成功了,而且代码很赞。

solution:

string intToRoman(int num) {
    string M[] = {"", "M", "MM", "MMM"};
    string C[] = {"", "C", "CC", "CCC", "CD", "D", "DC", "DCC", "DCCC", "CM"};
    string X[] = {"", "X", "XX", "XXX", "XL", "L", "LX", "LXX", "LXXX", "XC"};
    string I[] = {"", "I", "II", "III", "IV", "V", "VI", "VII", "VIII", "IX"};
    return M[num/1000] + C[(num%1000)/100] + X[(num%100)/10] + I[num%10];
}

原文链接:https://oj.leetcode.com/discuss/1208/how-to-improve-code

转载于:https://www.cnblogs.com/gattaca/p/4276338.html

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