Write a function whose prototype is void exchange (int \(* p, \text { int } \star q)\) that takes two pointers to integer variables and exchanges the values in those variables.

Question: Write a function that takes two pointers to integers as input and exchanges the values in those variables. Answer: To write a function that takes two pointers to integers as input and exchanges the values, you can create a temporary integer variable to store the value of the first integer variable and then assign the value of the second integer variable to the first integer variable. Finally, assign the temporary variable's value to the second integer variable. The function would look like: ```c void exchange(int *p, int *q) { int temp = *p; *p = *q; *q = temp; } ``` To test the function, you can call the exchange function with two integer variables' addresses as arguments and print the values of the variables before and after exchanging them.