Roman_Numeral_to_integer.cpp

#include <bits/stdc++.h>
int getRoman(char s)
{
    switch (s)
    {
    case 'I':
        return 1;
        break;
    case 'V':
        return 5;
        break;
    case 'X':
        return 10;
        break;
    case 'L':
        return 50;
        break;
    case 'C':
        return 100;
        break;
    case 'D':
        return 500;
        break;
    case 'M':
        return 1000;
        break;
    }
    return 0;
}
int romanToInt(string s)
{
    int answer = 0;
    for (int i = 0; i < s.length(); i++)
    {
        if (getRoman(s[i]) >= getRoman(s[i + 1]))
        {

            answer += getRoman(s[i]);
        }
        else
        {
            answer -= getRoman(s[i]);
        }
    }
    return answer;
}