first commit

2022-12-15 23:51:04 +07:00
commit 87d51fb251
292 changed files with 12623 additions and 0 deletions
@@ -0,0 +1,30 @@
+import java.util.*;
+
+public class Main {
+    static HashMap<Character, Integer> a = new HashMap<>();
+    static String LM = "MDCLXVI";
+
+    static int cal(String s) {
+        for (int i = 0; i < LM.length(); i++) {
+            if (s.indexOf(LM.charAt(i)) > -1) {
+                int x = s.indexOf(LM.charAt(i));
+                return a.get(LM.charAt(i)) - cal(s.substring(0, x)) + cal(s.substring(x + 1));
+            }
+        }
+        return 0;
+    }
+    public static void main(String[] args) {
+        Scanner sc = new Scanner(System.in);
+        a.put('I', 1);
+        a.put('V', 5);
+        a.put('X', 10);
+        a.put('L', 50);
+        a.put('C', 100);
+        a.put('D', 500);
+        a.put('M', 1000);
+        int t = sc.nextInt();
+        while (t-- > 0) {
+            System.out.println(cal(sc.next()));
+        }
+    }
+}