roman 2 integer

python-geeks · Alka107 · Oct 27, 2021 · Oct 27, 2021 · Oct 27, 2021 · Oct 27, 2021
commit cefeaaea7697cbdf72f11ba2d8469d9cdabe6b12
diff --git a/0013/roman to integer.py b/0013/roman to integer.py
@@ -0,0 +1,11 @@
+roman = {'I':1,'V':5,'X':10,'L':50,'C':100,'D':500,'M':1000}
+
+class Solution:
+    def romanToInt(self, s: str) -> int:
+        ans = 0
+        for i in range(len(s)-1,-1,-1):
+            num = roman[s[i]]
+            if 4 * num < ans: ans -= num
+            else: ans += num
+        return ans
+
diff --git a/0013/roman_to_integer.py b/0013/roman_to_integer.py