Esay C++ solution 43ms


  • 11
    L
    class Solution {
    public:
    	const static string THOUS[];
    	const static string HUNDS[];
    	const static string TENS[];
    	const static string ONES[];
        string intToRoman(int num) {
    		string result;
    		result += THOUS[(int)(num/1000)%10];
    		result += HUNDS[(int)(num/100)%10];
    		result += TENS[(int)(num/10)%10];
    		result += ONES[num%10];
    		return result;
        }
    };
    
    const string Solution::THOUS[]	= {"","M","MM","MMM"};
    const string Solution::HUNDS[]	= {"","C","CC","CCC","CD","D","DC","DCC","DCCC","CM"};
    const string Solution::TENS[]	= {"","X","XX","XXX","XL","L","LX","LXX","LXXX","XC"};
    const string Solution::ONES[]	= {"","I","II","III","IV","V","VI","VII","VIII","IX"};

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