C++

A - 3 - a B G & A MAS ABC x 0 3 - - @ H th e o o T Q O . Find De B Default D Times New Roman D 12 D B 1 u = = = TT = = = = E E A - . 1. (30 points) Let user input two integer numbers in the main function, then do the subtraction of the two numbers in a subroutine, pass the result to main function for display. 2. (30 points) Let the user to input the two integer numbers in the subroutinethen do the following math (x+y)5 Display the result in the main function. 3. (40 points) Let user input three integers, then find the biggest number. A function is required to do this job. User inputs, number comparison and result display must be done in the function. Hint: a void function should be defined