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Chapter 17: Problem 7

In a(n) __________ list, the last node has a pointer to the first node.

Short Answer

Expert verified
Answer: Circular list

Step by step solution

01

Identify the type of list

In computer programming, there are two types of lists, which are linear lists and circular lists. Linear lists are the ones in which the last element points to NULL or nothing, whereas circular lists have their last element pointing to the first element of the list. In this exercise, we need to identify the type of list with the last node having a pointer to the first node.
02

Answer the question

From the given information, we know that the last node has a pointer to the first node. This type of list is called a circular list because it forms a loop or circle with its elements. Therefore, the answer is: In a(n) circular list, the last node has a pointer to the first node.

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Most popular questions from this chapter

Write a function ListNode *ListConcat(ListNode *list1, ListNode *list2) That concatenates the items in list2 to the end of list1 and returns the resulting list.

Using the ListNode structure introduced in this chapter, write a function void printFirst(ListNode *ptr) that prints the value stored in the first node of a list passed to it as parameter. The function should print an error message and terminate the program if the list passed to it is empty.

You are the leader of a programming team. You want the programmers on your team to attend a two-day workshop on linked lists, stacks and queues. One of the managers points out that the STL already supplies each one of those data structures, making it unnecessary for your programmers to write their own. Write the manager a short memo that justifies the need for the workshop.

Write a function double lastValue(ListNode *ptr) that returns the value stored in the last node of a nonempty list passed to it as parameter. The function should print an error message and terminate the program if the list passed to it is empty.

Write a function void printSecond(ListNode *ptr) that prints the value stored in the second node of a list passed to it as parameter. The function should print an error message and terminate the program if the list passed to it has less than two nodes.
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