The distance between two points pA(XA,YA) and pB(XB,YB) is calculated as follows Distance=(XAXB)2+(YAYB)2 Write a well-documented C++ program consisting of two functions as described below. - Write a function that accepts as parameters (float) the coordinates XA,YA, XB,YB of two points A and B, and returns as a result the distance between the two given points. - In the function main: 1) Prompt the user to enter from the keyboard four numbers (float), where the first two numbers represent the coordinates of the first point and the last two numbers represent the coordinates of the second point. 2) Calculate the distance between the two points by calling the above-developed function. 3) Print the entered coordinates of the two points and the calculated distance between them separated by tab at the beginning of a new line. All values must be printed with 2 decimal places. 4) Repeat the previous three steps until the user enters control+Z . Hints \& Notes: - Late submissions or submission using email are NOT accepted. - Teamwork is allowed of No more than two students. - Verify the correctness of your program by running it several times with different array values. What to submit? Use BBU to submit ONE file named: xxxxxxxxLab3.cpp, 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