Question: Default Constructor Find - Takes in a string that can either be a phone number or a name and returns the found contact as a

Default Constructor
Find - Takes in a string that can either be a phone number or a name and returns the found contact
as a pointer. Returns a nullptr if a given string is not a name or a number in the contact system.
Add - Takes in a contact object and stores its memory address in the furthest-most empty position
in the array. The current order of contacts in the array must be preserved. (Note: passing by value
will result in a garbage pointer). It returns nothing. Also know that there will never be a
test case that tries to add a Contact that already exists in

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