You're enjoying learning programming so much, you've decided to run your own class teaching programming basics. You've got plenty of students signing up, and now you need to make logins for each of them. Since usernames (but not first names) have to be unique, you decide to write a program to help generate them. You should read in the classlist. txt which contains on each line. Your program should print out a list of usernames based on the following rules:

Username should be a students' first and, if applicable, middle name(s), with no spaces, converted to lower case.
If there already exists a student with that username, use their firstname plus first letter of last name converted to lower case.
If that already exists, use firstname plus first letter of lastname, plus a number, starting at 1 and counting up as required.

Mariah was working on a multimedia presentation that included both video and audio files. the file was huge, and she wanted to send it to her coworker in another office. she needed to reduce the size of the file so that it could be transmitted faster. the utility she used to do this was

The salespeople at hyperactive media sales all use laptop computers so they can take data with them on the road. you are a salesperson for superduper lightspeed computers talking to hyperactive media sales about upgrading the laptops to windows 10. explain how network location awareness in windows 10 would make the laptops more secure.

1. ask the user how many questions are in the quiz. 2. ask the user to enter the key (that is, the correct answers). there should be one answer for each question in the quiz, and each answer should be an integer. e.g., 34 7 13 100 81 3 9 10 321 12 might be the key for a 10-question quiz. you will need to store the key in an array. 3. ask the user to enter the answers for the quiz to be graded. there needs to be one answer for each question. note that these answers do not need to be stored; each answer can simply be compared to the key as it is entered. 4. when the user has entered all of the answers to be graded, print the number correct and the percent correct. 5. add a loop so that the user can grade any number of quizzes with a single key. after the results have been printed for each quiz, ask "grade another quiz? (y/n)." note: you only have one array (the key). you are not creating a new key for each set of quiz answers.