IN C++ PLEASE CODE THE FOLLOWING

Given

int item1, item2, item3, avevalue;

item1 = 90;

item2 = 67;

item3 = 72;

avevalue = 0;

Write a program to perform the following tasks.

I. declare and initialize item1, item2, item3 and avevalue as above.

II. compute the average value avevalue on item1, item2, and item3, and then display

avevalue on the screen.

III. define int max(int a, int b, int c) to return the maximum value among the three input arguments.

IV. using max() to find out the maximum value among item1, item2, and item3, return the maximum

value, and then display it on the screen.