Write a program in C++ that reads integer values continuously until zero or negative value is entered. Then program should displays information about each value as follows:

v1 ==> Avg. Of Even Digits: d.dd, Largest Digit: d v2 ==> Avg. Of Even Digits: d.dd, Largest Digit: d ... etc.

The program should use the following functions: getAvgEvenDigits( ): a function that takes one value and returns the average of even digits.getMaxDigit( ): a function that takes one value and returns the maximum digit of the value.