Using C/C++, declare three integer variables (e.g. A, B, C) in main() and assign their values from standard input (cin). Then call a function swap 1() to swap their values through pointers (e.g. A, B. C are 4, 5 and 6. after calling swap(). A has B's value 5, B has C's value 6, and C has As value 4). and output A, B, and C; finally, define another function swap 2 to swap A, B, C one more time using references Using C/C++, define an integer pointer in main(), and use this pointer to dynamically allocate an integer array with 50 elements; assign the array with random numbers in range [0, 999]. Then, pass the array as parameters) to a function prime_count() which counts the number of the integers that are prime, and prints those integers, after the function call, print the "counter" result; finally, use delete to deallocate the array memories. Note that you need to define a Boolean function prime() which tells whether an integer is prime or not. This function will be called and used by prime_count() to tell whether the numbers in the array are prime or not. Redo programs of 1 and 2 by using separate header and source files: declaring the functions in header files, and implementing functions in source files