c++ code please

Suppose you have a file called "MyFile.der. In this file a list of unknown number of users ages are listed. Write a Ch program to read the ages and save the following in a file called "Outfile.dor: 1. Total number of users ages 2. The average value of all ages 3. Total number of children, where a user with age less than or equal to 16 is considered as a child. The generated output should be formatted as follows: Example MyFile.dat OutFile.dat 20 15 Total Number of Users = 5 12 The overall age average 13.0 8 Total Number of children = 4 10