You currently work in an algorithm development group for a large multimedia, mobile device corporation. Your group has been tasked with creating an app that will play an audio file backwards (from end to beginning rather than the standard beginning to end).
Because this app is likely to be used on a mobile device, your group figures that this algorithm should use as little memory and space as possible.
Your group has therefore decided to construct this reversal order algorithm such that it is an "in-place" algorithm. This simply means that the audio file will be loaded to memory and reversed using the same memory locations (because you must use memory sparingly).