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You are trying to insert node B between A and C. Which of the following pieces of code will correctly do so?

You are trying to insert node B between A and C. Which of the following pieces of code will correctly do so?

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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A 2 4 NULL Data Data next Data next Data next next В Data Snext Нead prev curr You are trying to insert node B between A and C. Which of the following pieces of code will correctly do so? Option 1: prev->next = curr; curr->next = prev->next; Option 2: curr->next = prev->next; prev->next = curr; Option 3: curr->next = prev; prev->next = curr; Option 4: prev->next = curr; curr->next = prev;
Transcribed Image Text:A 2 4 NULL Data Data next Data next Data next next В Data Snext Нead prev curr You are trying to insert node B between A and C. Which of the following pieces of code will correctly do so? Option 1: prev->next = curr; curr->next = prev->next; Option 2: curr->next = prev->next; prev->next = curr; Option 3: curr->next = prev; prev->next = curr; Option 4: prev->next = curr; curr->next = prev;
temp1 temp4 1 2 3 4 NULL Data next Data next Data next A temp2 temp3 Head Given a linked list above, we would lik to insert a new node A at the start of the list. hich of the following code segments are correct? elect all that applies. Notice that pointer temp1 and temp2 point to node A, pointer temp3 and temp4 point to the original first node. O temp1->next = temp4; head = temp2; O head = head->next; temp2->next = head; O head = temp1; head -> next = temp3 ; O temp1 -> next = head; head = temp1;
Transcribed Image Text:temp1 temp4 1 2 3 4 NULL Data next Data next Data next A temp2 temp3 Head Given a linked list above, we would lik to insert a new node A at the start of the list. hich of the following code segments are correct? elect all that applies. Notice that pointer temp1 and temp2 point to node A, pointer temp3 and temp4 point to the original first node. O temp1->next = temp4; head = temp2; O head = head->next; temp2->next = head; O head = temp1; head -> next = temp3 ; O temp1 -> next = head; head = temp1;
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