public static void main(String[] args) {

Solution solution = new Solution();

System.out.println(solution.romanToInt("LVIII"));

// Integer.parseInt("1" + Integer.MAX_VALUE);

}

static

class Solution {

public int romanToInt(String s) {

int result = 0;

for (int i = 0; i < s.length(); i++) {

int cur = getInt(s.charAt(i));

if (i + 1 < s.length() && getInt(s.charAt(i + 1)) > getInt(s.charAt(i))) {

result -= cur;

} else {

result += cur;

}

}

return result;

}

private int getInt(char ch) {

switch (ch) {

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;

}

}

}