improve -Solved a new EASY challenge in Leetcode array/string.

Author: phoenix-deb

problems/leet-code/top-150-interview/string/roman_to_integer.py

@@ -0,0 +1,38 @@
+class Solution:
+    """
+        Runtime: 42ms | Beats: 80.13%
+
+        Got help from Jadi :)
+    """
+    
+    def romanToInt(self, s: str) -> int:
+        conversion = {
+            "I": 1,
+            "V": 5,
+            "X": 10,
+            "L": 50,
+            "C": 100,
+            "D": 500,
+            "M": 1000,
+            "IV": 4,
+            "IX": 9,
+            "XL": 40,
+            "XC": 90,
+            "CD": 400,
+            "CM": 900
+        }
+
+        result = 0
+        counter = 0
+        while (counter < len(s)):
+            if s[counter:counter+2] in conversion:
+                result += conversion[s[counter:counter+2]]
+                counter += 2
+            else:
+                result += conversion[s[counter]]
+                counter += 1
+
+        return result
+
+
+problem_link = "https://leetcode.com/problems/roman-to-integer/submissions/1389192837/?envType=study-plan-v2&envId=top-interview-150"