Assignment 1. In main(): a. Create two double variables (x and y) and initialize them to values 29.3 and 37.5. b. Create a pointer to a double (p) and initialize it to the address of x. c. Print the value of x by using the pointer, not the variable x. d. Change the value of p to the address of y and print the value of y using the pointer. 2. Write a function to swap the values of two doubles. 3. In main(), swap the values of x and y using the swap function and print their new values.

Pointers are the special variable that stores the variable address, instead of storing the variable value. Pointer is a powerful feature of a programming language. A pointer is mostly used to save memory space and improve execution time.