Object Oriented Programming C++2 - Lab Lab #4: Friend functions. Objectives: Use friend functions. Student Learning Outcomes: You will: Be able to write friend functions and use it. Background: You have learned how to write a friend function Exercise #1: Write a program with a class that contains an array of integers. Initialize the integer array in the constructor of the class. Then create two friend functions to the class to find the largest and smallest integers in the array. Create a destructor that sets all of the elements in the array to 0