C++: Struct in Array Address Book

You've decided you'd like to carry your address book on your thumb drive, but you don't want to pay for an app. Great! You can write a program to do this. Define a struct called addressType. It will contain fields firstName, lastName, address, and phone. This being done, you can declare a constant called numberOfFriends, and use this constant to declare an array of addressType. Your program is at the proof of concept stage, so the only functionality you'll need is the ability to read in the struct fields for each record you wish to place in the array, sort them by alphabetical order based on last name, and save this information to a file. Later, you can add the ability to read an infile, like last run's outfile, to initialize your array. Finally, you'll add abilities like adding the address contents of another file to your existing one or provide a lookup function. For now, all you'll do is add addresses via stdin, sort the array by last name, and save it to a file. Your program should have a while loop that controls a call to an add address function in the main function. Other functions, called from main, will be sort and save. Make sure your program writes the address array fields on separate lines, with a blank line between records, like this: Sandra Bullock 15 Anywhere Ln Hollywood, CA 41517 212 123 4567 Superman 28 Lois Ln Fortress of Solitude, Arctic Circle 00000 You don't call Superman, he calls you. Submit your source code, titled [login to view URL] no later than the due date and time. You don't need to submit an address book file.