These questions are about Data Structures. I need very short answers for below questions.

7. Write the insert function for the sequence. Why should this implementation avoid using the copy function from ? 8. Suppose that a sequence has 24 items, and there is no current item. According to the invariant of the class, what is current_index? 9. Suppose g is a sequence with 10 items. You activate g.start), then activate g.advance() three times. What value is then in g.current index? 7. Write the insert function for the sequence. Why should this implementation avoid using the copy function from ? 8. Suppose that a sequence has 24 items, and there is no current item. According to the invariant of the class, what is current_index? 9. Suppose g is a sequence with 10 items. You activate g.start), then activate g.advance() three times. What value is then in g.current index