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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.
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c++ code:
class Solution { public: 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]; } };
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原文地址:http://blog.csdn.net/itismelzp/article/details/51331414