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Which of the following code segments would correctly remove the first node (and free its memory) from the linked list. Pointers A and B point to the first and second nodes of the linked list respectively. Select all that apply. 1 2 3 4 NULL Data next Data next Data next Data next Head A В

Which of the following code segments would correctly remove the first node (and free its memory) from the linked list. Pointers A and B point to the first and second nodes of the linked list respectively. Select all that apply. 1 2 3 4 NULL Data next Data next Data next Data next Head A В

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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c++

Which of the following code segments would correctly remove the first node (and free its memory) from the linked list. Pointers A and B point to the first and second nodes of the linked list respectively. Select all that apply. 1 2 3 NULL Data next Data next Data next Data next Не А В O delete A; Head = A->next; O Head = Head->next; delete B; O Head = B; delete A; O delete Head; Head = B; O Head = Head->next; delete Head;
Transcribed Image Text:Which of the following code segments would correctly remove the first node (and free its memory) from the linked list. Pointers A and B point to the first and second nodes of the linked list respectively. Select all that apply. 1 2 3 NULL Data next Data next Data next Data next Не А В O delete A; Head = A->next; O Head = Head->next; delete B; O Head = B; delete A; O delete Head; Head = B; O Head = Head->next; delete Head;
What is the output of the following code? #include <iostream> using namespace std; int main(){ int a = 10; int b = 15; int c = 5; int * ра &a; int * pb &b; int * pc = &c; pb = pa; pa = pc; IL II II II cout << *pa « "," << *pb << " ," « *pc << endl; }
Transcribed Image Text:What is the output of the following code? #include <iostream> using namespace std; int main(){ int a = 10; int b = 15; int c = 5; int * ра &a; int * pb &b; int * pc = &c; pb = pa; pa = pc; IL II II II cout << *pa « "," << *pb << " ," « *pc << endl; }
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