Write a C$++$ program that prompts the user for a percentage, and then prints out the letter grade appropriate to that percentage on the following scale:$90-100==$ A$80-89==$ B$70-79==$ C$60-69==$ D$59$ or lower $==$ FHow would we solve this using if$-$else if$,$ statements? How would we use a switch statement? Try to use a switch statement.