This must be C++ program

4 INTRODUCTION TO PASS BY REFERENCIE Retrieve program paycheck.cpp from the Lab 6 folder eise I: Fill in the code (places in bold) and note that the function compute Paycheck determines the net pay by subtracting 15% from the gross pay. Both gross and net are returned t o the main0 function where those values are printed. Exercis e 2: Compile and run your program with the following data and make sure you get the output shown. Exercise 3: Are the parameters gross and net, in the modified calPaycheck function you created in Exercise 1 above, pass by value or pass by reference? Exercise 4: Alter the prog of in main0. The main0 function executes the statement ram so that gross and net are printed in the function compute computePaycheck instead cout