In this problem, you will write a function to reverse an array of integers. Your algorithm should use 0(1) space beyond the input; any algorithms that use space not in O(1) will receive half credit at most. You may not use any library functions in this question; any solutions that do will receive zero credit.

Your program should accept as input a space-separated list of integers, and output another space-separated list of integers that contains the original elements in reversed order. For example, the input 3 4 7 6 1 should result in printing the output 1 6 7 4 3. The functionality for reading and printing answers is written for you; your task is to complete the reverseArray () method.