roman2arab

#include <iostream>
#include <deque>
#include <string>

int main() {
    std::deque<int> arab;

    std::cout << "Please enter a roman numeral in All-Caps..." << std::endl;
    std::string roman;
    std::getline(std::cin, roman);

    for (unsigned int i = 0; i < roman.size(); i++) {
        int temp;
        switch (roman[i]) {
            case 'I':
                temp = 1;
                break;
            case 'V':
                temp = 5;
                break;
            case 'X':
                temp = 10;
                break;
            case 'L':
                temp = 50;
                break;
            case 'C':
                temp = 100;
                break;
            case 'D':
                temp = 500;
                break;
            case 'M':
                temp = 1000;
                break;
        }

        arab.emplace_back(temp);
    }

    int result = 0;

    while(arab.size() > 0){
        int temp = 0;

        if (arab.size() == 1) {
            result += arab[0];
            arab.pop_front();
            break;
        }

        if (arab[0] >= arab[1]) {
            result += arab[0];
            arab.pop_front();
        }
        else {
            result -= arab[0];
            arab.pop_front();
        }

    }

    std::cout << "Result: " << result << std::endl;
    std::getchar();
    return 0;
}