From 4094a8278868d5b78cbf3d215cecee7578aff05a Mon Sep 17 00:00:00 2001
From: Nitin Sahu <nitinsaahu00000@gmail.com>
Date: Sun, 28 Jul 2024 12:43:08 +0530
Subject: [PATCH] Roman to Integer in java

---
 .../Roman to Integer                          | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 Roman to Integer - Leetcode 13/Roman to Integer

diff --git a/Roman to Integer - Leetcode 13/Roman to Integer b/Roman to Integer - Leetcode 13/Roman to Integer
new file mode 100644
index 0000000..826a8e9
--- /dev/null
+++ b/Roman to Integer - Leetcode 13/Roman to Integer	
@@ -0,0 +1,22 @@
+class Solution {
+    public int romanToInt(String s) {
+         Map<Character, Integer> map=new HashMap<>();
+        map.put('I',1);
+        map.put('V',5);
+        map.put('X',10);
+        map.put('L',50);
+        map.put('C',100);
+        map.put('D',500);
+        map.put('M',1000);
+
+        int result=map.get(s.charAt(s.length()-1));
+        for(int i=s.length()-2;i>=0;i--){
+            if(map.get(s.charAt(i)) < map.get(s.charAt(i+1))){
+                result-=map.get(s.charAt(i));
+            }else{
+                result+=map.get(s.charAt(i));
+            }
+        }
+        return result;
+    }
+}