Roman to Integer

[itsooof]

Enter your question -

Roman numerals are represented by seven different symbols: I, V, X, L, C, D and M.

Symbol Value
I 1
V 5
X 10
L 50
C 100
D 500
M 1000
For example, 2 is written as II in Roman numeral, just two one's added together. 12 is written as XII, which is simply X + II. The number 27 is written as XXVII, which is XX + V + II.

Roman numerals are usually written largest to smallest from left to right. However, the numeral for four is not IIII. Instead, the number four is written as IV. Because the one is before the five we subtract it making four. The same principle applies to the number nine, which is written as IX. There are six instances where subtraction is used:

I can be placed before V (5) and X (10) to make 4 and 9.
X can be placed before L (50) and C (100) to make 40 and 90.
C can be placed before D (500) and M (1000) to make 400 and 900.
Given a roman numeral, convert it to an integer.

Enter link to the question(if question belongs to any online platform) -

https://leetcode.com/problems/roman-to-integer/

Tags for the question(eg - Array, Basic, Stack, etc.) -

Basic

[itsooof]

Please assign this issue to me @SarthakKeshari

[SarthakKeshari]

@itsooof,
Kindly add your solution to "leetcode" folder
Deadline - 18/10/2021

This Issue will only be counted towards ranking criteria of this repository.

Gentle advice-
A bit more tough questions would be appreciated for Hacktoberfest tag.