Run time error in code

#1

getting runtime exception in code when running

exception occurred while getting input from scanner please explain

#2

@dheerajmishra992 Exception occurred because your logic is wrong bro! That’s why index out of bound occurred because you are checking arr[si] > arr[si + 1], now when si = last index then si+ 1 will check for index which is not even present.
So your base case should be if n == arr.length - 1.