Link list node */ struct node { int data; struct node* next; };   /* head_ref is a double pointer which points to head (or start) pointer of linked list */ static void reverse(struct node** head_ref) { struct node* prev = NULL; struct node* current = *head_ref; struct node* next; while (current != NULL) { next = current->next; current->next = prev; prev = current; current = next; } /*ADD A STATEMENT HERE*/ }

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
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ANSWER THAT MCQ QUESTION IN 2 MINUTES PLEASE..

The following function reverse() is supposed to reverse a singly linked list. There is one line missing at the end of the function.

 

/* Link list node */

struct node { int data; struct node* next; };

  /* head_ref is a double pointer which points to head (or start) pointer of linked list */

static void reverse(struct node** head_ref) { struct node* prev = NULL;

struct node* current = *head_ref; struct node* next;

while (current != NULL) { next = current->next;

current->next = prev;

prev = current;

current = next;

} /*ADD A STATEMENT HERE*/ }

 

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