1th Roman_to_Integer

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#include <iostream>#include <string>#include <cstring>class Solution {public:   int RomanToInt(std::string str){        int length = str.size();int sum =0;int i;for(i=0;i<length;i++){sum+=Roman_To_Int(str[i]);}//system("pause");        return sum;            }   int Roman_To_Int(char c)   {        switch (c)        {            case 'I':                return 1;            case 'V':                return 5;            case 'X':                return 10;            case 'L':                return 50;            case 'C':                return 100;            case 'D':                return 500;            case 'M':                return 1000;            default:                return 0;        }   }};int main(){   using namespace std;   string roman;   cout <<  "Roman: ";   Solution roman_to_integer;   getline(cin,roman);   cout<< "Integer:"<<roman_to_integer.RomanToInt(roman)<<endl;   system("pause");   return 0;}

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