Write a C ++ program that can calculate the cube of a variable defined in the Main function with two alternative functions and print the result on the screen. One of the functions (--- tripleByValue...

Write a C ++ program that can calculate the cube of a variable defined in the Main function with two alternative functions and print the result on the screen. One of the functions (--- tripleByValue (---)) will calculate taking the value of the variable. The other (--- tripleByReference (---)) will calculate taking the reference of the variable.