Q5: Reduce No Change  Python def reduce_no_change(fn, lst, base):     """Same as Q4.  However, preserve the lst in this problem.       Object can be any python type which the input           Not Allowed To Import Libraries     Args:         fn (function): Combination function which takes in two arguments and return                        an value with the same type as the second argument         lst (List): A list of any type         base (Object): A value of custom type which fn can handle.     Returns:          Object: A value after applying fn on lst.     >>> reducer = lambda x, y: x + y     >>> lst = [1, 2, 3]     >>> a = reduce_lst(reducer, lst, 0)     >>> a # a = reducer(reducer(reducer(base, lst[0]), lst[1]), lst[2])     6     >>> lst     >>> [1, 2, 3] # we preserve the list     """     ### Modify your code here     ### Modify your code here

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Pointers are the special variable that stores the variable address, instead of storing the variable value. Pointer is a powerful feature of a programming language. A pointer is mostly used to save memory space and improve execution time.