C++

Q7) Write a program that prompts the user to enter two numbers (n1 and n2) then swap them. Your program must have the following function: a. Swap: This function takes the reference parameters of nl and n2 and swap their values. Sample run: Enter two numbers nl and n2: 10 20 In Main function-values before swapping: 10 20 In Swap Function values before swapping: 10 20 In Swap Function values after swapping: 2010 In Main function values after swapping: 20 10