v2 Question 15 Suppose that locate_ptr is a pointer to a node in a linked list of section 5.2 (and it is not the null pointer). What does your statement do if locate_ptr was already pointing to the last node in the list? Group of answer choices If locate_ptr is already pointing to the last node before this assignment statement, then the assignment will set first_ptr to the null pointer. If locate_ptr is already pointing to the last node before this assignment statement, then the assignment will set locate_ptr to the first node. If locate_ptr is already pointing to the last node before this assignment statement, then the assignment will set locate_ptr to the last node +1. If locate_ptr is already pointing to the last node before this assignment statement, then the assignment will set locate_ptr to the null pointer. If locate_ptr is already pointing to the last node before this assignment statement, then the assignment will generate and overflow and set locate_ptr to an error message. Flag question: Question 16Question 16 What would be the best answer to why is a precursor node pointer necessary in the linked-list implementation of a sequence class(Section 5.4)? Group of answer choices A precursor node pointer is necessary in the sequence class because its insert function adds a new item immediately before the current node. Because the linked-list toolkit's insert function adds an item after a specified node, the precursor node is designated as that node. A precursor node pointer is necessary in the sequence class because its insert function adds a new item immediately after the current node. Because the linked-list toolkit's insert function adds an item before a specified node, the precursor node is designated as that node. A precursor node pointer is necessary in the sequence class because its insert function adds a new item immediately before the current node. A precursor node pointer is necessary in the sequence class because its insert function adds a new item at the current node. Because the linked-list toolkit's insert function adds an item at a specified node, the precursor node is designated as that node. Because the linked-list toolkit's insert function adds an item after a specified node, the precursor node is designated as that node.
v2
Question 15
Suppose that locate_ptr is a pointer to a node in a linked list of section 5.2 (and it is not the null pointer). What does your statement do if locate_ptr was already pointing to the last node in the list?
Group of answer choices
If locate_ptr is already pointing to the last node before this assignment statement, then the assignment will set first_ptr to the null pointer.
If locate_ptr is already pointing to the last node before this assignment statement, then the assignment will set locate_ptr to the first node.
If locate_ptr is already pointing to the last node before this assignment statement, then the assignment will set locate_ptr to the last node +1.
If locate_ptr is already pointing to the last node before this assignment statement, then the assignment will set locate_ptr to the null pointer.
If locate_ptr is already pointing to the last node before this assignment statement, then the assignment will generate and overflow and set locate_ptr to an error message.
Flag question: Question 16Question 16
What would be the best answer to why is a precursor node pointer necessary in the linked-list implementation of a sequence class(Section 5.4)?
Group of answer choices
A precursor node pointer is necessary in the sequence class because its insert function adds a new item immediately before the current node. Because the linked-list toolkit's insert function adds an item after a specified node, the precursor node is designated as that node.
A precursor node pointer is necessary in the sequence class because its insert function adds a new item immediately after the current node. Because the linked-list toolkit's insert function adds an item before a specified node, the precursor node is designated as that node.
A precursor node pointer is necessary in the sequence class because its insert function adds a new item immediately before the current node.
A precursor node pointer is necessary in the sequence class because its insert function adds a new item at the current node. Because the linked-list toolkit's insert function adds an item at a specified node, the precursor node is designated as that node.
Because the linked-list toolkit's insert function adds an item after a specified node, the precursor node is designated as that node.
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Introduction
Node:
A node is a type of data structure used throughout computer science and programming, engineering. A node is a fundamental element of a linked list that contains data and a connection (pointer) to the node after it.
Linked list:
A linked list is indeed a continuous data structure where other components aren't kept in close proximity to each other in memory. Instead, a link (pointer) to the following node of the list is present in each of the nodes. The list's first node is referred to as its head, and its last node refers to a void pointer to denote the list's end.
Linked lists are dynamic data structures that really can change in size as a program is being run. Although they offer quick insertion and deletion operations, access to a single element may be slower than with arrays. Applications for linked lists include the depiction of stacks, queues, and graphs.
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