Discussion on: Solution: Roman to Integer

[Apoorav Misra]

public static int romanToInt(String s){
int year = 0;
for(int i=0;i<s.length();i++){
char c = s.charAt(i);
if(c == 'I') {
if (i != s.length() - 1 && s.charAt(i + 1) == 'V')
year = year - 1;
else if (i != s.length() - 1 && s.charAt(i + 1) == 'X')
year = year - 1;
else
year = year + 1;
}
else if(c == 'V')
year = year + 5;
else if(c == 'X'){
if (i != s.length() - 1 && s.charAt(i + 1) == 'L')
year = year - 10;
else if (i != s.length() - 1 && s.charAt(i + 1) == 'C')
year = year - 10;
else
year = year + 10;
}
else if(c == 'L')
year = year + 50;
else if(c == 'C'){
if (i != s.length() - 1 && s.charAt(i + 1) == 'D')
year = year - 100;
else if (i != s.length() - 1 && s.charAt(i + 1) == 'M')
year = year - 100;
else
year = year + 100;
}
else if(c =='D')
year = year + 500;
else if(c == 'M')
year = year + 1000;
}
return year;