Decryptor.java

HackerRankDashboard/CoreCS/Implementation/src/main/java/org/javaaid/hackerrank/solutions/implementation/bruteforce/Decryption.java

@@ -0,0 +1,35 @@
+
+public class Decryption {
+
+	 static String decryption(String s) {
+	        StringBuilder s1 = new StringBuilder();
+        String result ="";
+        s1.append(s);
+        s=s1.reverse().toString();
+        char[] chars = s.toCharArray();
+        s1.delete(0,chars.length);
+        for(int i=0;i<chars.length;i++){
+            if(Character.isDigit(chars[i]))
+            {
+                for(int j=0;j<(chars[i] -'0')-1;j++){
+                    s1.append(chars[i-1]);
+                }
+            }
+            else{
+                s1.append(chars[i]);
+
+            }
+
+        }
+     result=s1.toString();
+			return result;
+	    }
+
+	    public static void main(String[] args) {
+	        Scanner in = new Scanner(System.in);
+	        String s = in.next();
+	        String result = decryption(s);
+	        System.out.println(result);
+	        in.close();
+	    }
+	}