a) Define a function that swaps elements in two given integer arrays. The precondition of this function is that the two given arrays have the same size. For example, if the caller has two arrays arr1 and arr2 of the same size: arr1 is [5, 6, 7, 8] and arr2 is [0,7,5,7], after calling the function on them, arri becomes [0,7,5,7), arr2 becomes [5, 6, 7, 8]