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LeetCode:Integer to Roman

时间:2016-05-07 11:23:10      阅读:169      评论:0      收藏:0      [点我收藏+]

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Integer to Roman


Total Accepted: 63476 Total Submissions: 162818 Difficulty: Medium

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];
    }
};


LeetCode:Integer to Roman

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原文地址:http://blog.csdn.net/itismelzp/article/details/51331414

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