using c++: Write a class date (d, m, y), class file (name, size, creation_date) and class directory (name, directory_creation_date, array[files]) Write the constuctors, destructors, set, get methods...

Write a class date (d, m, y), class file (name, size, creation_date) and class directory (name, directory_creation_date, array[files])
Write the constuctors, destructors, set, get methods for each class
Create a directory object and fill it with its required data

Find the size of the created directory object.