solve using c++

Write a well-documented C++ program consisting of the following two functions. - Write a function that accepts an array of double elements and its size as parameters, swaps the two halves of the array as shown below. If the array consists of 7 elements as follows: Then your function should swap the two halves of the given array so as it becomes as follows: - Write a function main () that defines an array consisting of 15 double elements and performs the following tasks in order: a) fills the array by prompting the user to enter 15 double values from the keyboard; b) displays all array elements (before swapping) separated by two spaces; c) swaps the two halves of the array by calling the above-defined function; d) displays all array elements (after swapping) separated by tabs. Hints 1) Develop and check the correctness of the parts in a and b parts before starting parts c and d. 2) Try and practice the following program structures: - In your program, write the main ( ) function after the first function. - In your program, write the first function after the main ( ) function. You have to use the prototype in this case