LeetCode OJ 13 Roman To Integer
来源：互联网 发布：js 数组 empty 编辑：程序博客网 时间：2024/05/29 15:31
参考http://blog.csdn.net/jellyyin/article/details/13165731
代码如下
class Solution {public: int romanToInt(string s) { map<char,int> mapValue; mapValue.insert(pair<char,int>('I',1)); mapValue.insert(pair<char,int>('V',5)); mapValue.insert(pair<char,int>('X',10)); mapValue.insert(pair<char,int>('L',50)); mapValue.insert(pair<char,int>('C',100)); mapValue.insert(pair<char,int>('D',500)); mapValue.insert(pair<char,int>('M',1000)); int result=0; for(int i=s.size()-1;i>=0;i--){ if(i==s.size()-1){ result=mapValue[s[i]]; continue; } if(mapValue[s[i]]>=mapValue[s[i+1]]) result+=mapValue[s[i]]; else result-=mapValue[s[i]]; } return result; }}; 0 0
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