Roman To Integer Roman numerals are represented by seven different symbols: I , V , X , L , C , D and M . Given a roman numeral, convert it to an integer. ( I can be placed before V and X to make 4 and 9.
Source: [Dev.to](https://dev.to/secondlastsleep/converting-roman-numbers-into-integers-easy-leetcode-practice-3-3h03)