help, please!

I need two types of program for this question but the same output and the same question .

Write a well-documented C++ program consisting of the following two functions. Write a function that accepts an array of integer elements and its size as parameters, swaps the two halves of the array as shown below. If the array contains the following: 5 9 2 12 4 Then your function should swap the two halves of the given array so as it becomes as follows: 12 4 9 2 Write a function main () that defines an array consisting of 13 integer elements and performs the following tasks in order: fills the array by prompting the user to enter 13 integer values from the keyboard; displays all array elements separated by two spaces. swaps the two halves of the array by calling the above-defined function. displays all array elements (after swapping) separated by tabs. Hints 1. Develop and check the correctness of the tasks in a and b parts before starting parts c and d. 2. Try and practice the following program structures: o your program, write the main () function after the first function. o your program, write the first function after the main () function. You have to use the prototype in this case