Create 0013_Roman to Integer.java

berkayzaimdev · web-flow · commit bf065f7101d0 · 2023-02-22T22:04:19.000+03:00
diff --git a/Solutions/0013_Roman to Integer.java b/Solutions/0013_Roman to Integer.java
@@ -0,0 +1,20 @@
+class Solution {
+    public int romanToInt(String s) 
+    {
+        Map<Character,Integer> romantoint = Map.of
+        (
+            'I',1,
+            'V',5,
+            'X',10,
+            'L',50,
+            'C',100,
+            'D',500,
+            'M',1000
+        );
+
+        int sum=0;
+        s = s.replace("IV", "IIII").replace("IX", "VIIII").replace("XL", "XXXX").replace("XC", "LXXXX").replace("CD", "CCCC").replace("CM", "DCCCC");
+        for(Character c : s.toCharArray()) sum+=romantoint.get(c);
+        return sum;
+    }
+}
