please answer using C++

4.21 LAB: Varied amount of input data Statistics are often calculated with varying amounts of input data. Write a program that takes any number of non-negative integers as input, and outputs the max and average. A negative integer ends the input and is not included in the statistics. Assume the input contains at least one non-negative integer. Output each floating-point value with two digits after the decimal point, which can be achieved by executing cout