In this assignment, you will write an interactive program meant to check if an email is in a list of
spam addresses or not. This program will read in email data files and populate a hash table with
these email addresses, then allow for user interaction with the data. The user will enter email
addresses to check if they are spam by looking into the hash table.
The educational purpose of this programming assignment is to introduce you to the C
programming language, hashtables with closed addressing, file I/O, and command line