Currently you have the Byte class derived from the CheckedArray class. What you may have noticed is that there is some redundant code that needs to be cleaned up$.$ Here are the tasks to clean things up$.$

Remove the at function that is a member of the Byte class and create it as a virtual function in the base class. The at function should check to make sure the index provided is within the bounds of the array. If the index is out of bounds simply return $0.$

Remove the $[]$ operator from the Byte class and create it as a virtual function in the base class. This function should simply call the at function.

Create a virtual toString function in the CheckedArray class that will return a string representation of the array. You may want to investigate using the to$\_$string function to convert each value in the array to a string.

In the derived class $($Byte$)$ override the toString function. The functionality for toString in both the base and derived classes is very similar with the exception that that Byte class should return the array in reverse. Have the Byte toString function called the CheckedArray toString function to get the string then return it in reverse order from Byte.

To reverse the string you can borrow some functionality from the algorithm and use the reverse function. You must include algorithm then you can reverse the string by providing iterators to the beginning and end. Here is a simple example:

string s $="123456"$;

reverse$($s$.$begin$(),$ s$.$end$())$;

$//$ String will be $"654321$:

Required

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