FOR C++

WRITE PROGRAM TO UTILIZE POINTER ADDRESSING INSTEAD OF ARRAY SUBSCRIPTING

Functional Requirements:

A menu-driven program that offers the user 5 options as follows:

Menu:

1. Display array

2. Multiply each element in the array by 3.

3. Swap the values in row two with the values in row three.

4. Calculate the SUM of all elements and display that number.

5. Exit

Programming Requirements:

In main(), declare and initialize a 2-dimensional array that contains 5 x 5 elements. Initialize the elements to:

1,2,3,4,5

-20, -40,-60, -80, -100

3,3,3,3,3

5, 7, 9, 11, 13

-15, -25, -35, -45, -55

Display the menu and then execute the user's choice. Keep displaying the menu (and executing the user's choice) until the user chooses Option 5.

1. Declare an int array and initialize it as before. (You can't point at a 2D array in C++, so create an 1-dim array with 25 elements.)

2. Declare an int pointer and point to the array. From then on in the program, you may only use the pointer. You may not use the array or any array subscripting in any other part of your program. You must only use pointer addressing.

3. Always display the array and manipulate it as if it were still a 2-dim array of 5x5.

4. Make sure your code is well-organized and well-documented. No global variables. Use functions and parameters appropriately.

In menu option 2, please triple the actual values in the array. Don't print the array. That's a different menu option.

In menu option 3, please swap the actual array values. Don't display the array. That's a different menu option.

Programming Notes:

Small example about setting up the pointer and not using array subscripts:

int balance[4] = {100, 2, 3, 17}; //here I am declaring my array

int *point; // declaring the pointer

point = balance; //pointing to the array

for ( int i = 0; i < 3; i++ )

cout << *(point + i) << endl; //using the pointer to access array elements

SHOW PROGRAM WORKS WITH A PICTURE