C++ Lab6a We've seen two ways we can write a function that swaps the values of two int variables: one way passes the ints by reference, the other way passes the addresses of those ints. Write a swap function that uses both - it should pass one int variable by reference, and should pass the address of the other int variable, and the function should then swap those two values. Write a main function that declares and initializes two int variables, calls your swap function, and then prints out the two variables, showing that their values were correctly swapped.