Create roman_to_integer.py

Python-for-beginners/roman_to_integer.py

@@ -0,0 +1,26 @@
+class Solution:
+    def romanToInt(self, s):
+        roman_dict = {
+            "I": 1,
+            "V": 5,
+            "X": 10,
+            "L": 50,
+            "C": 100,
+            "D": 500,
+            "M": 1000,
+        }
+        total = 0
+        for i in range(len(s)):
+            if i + 1 < len(s) and roman_dict[s[i]] < roman_dict[s[i + 1]]:
+                total -= roman_dict[s[i]]
+            else:
+                total += roman_dict[s[i]]
+
+        return total
+
+
+solution = Solution()
+
+roman_string = input("Enter a Roman numeral: ")
+result = solution.romanToInt(roman_string)
+print(f"The integer value of the Roman numeral '{roman_string}' is: {result}")