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*/} What should be added in place of “/*ADD A STATEMENT HERE*/”, so that the function correctly reverses a linked list.*head_ref = prev;*head_ref = current;*head_ref = next;head_ref = NULL;
Question
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/} What should be added in place of “/ADD A STATEMENT HERE/”, so that the function correctly reverses a linked list.*head_ref = prev;*head_ref = current;*head_ref = next;head_ref = NULL;
Solution
*head_ref = prev;
Similar Questions
Write a C program to reverse a single linked list recursively. #include <stdio.h> #include <stdlib.h> struct Node { int data; struct Node* next; }; // Write a function to create a new node with the given data // Write a function to print the linked list // Write a function to reverse the linked list recursively // Write your main function here
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f reverse_linked_list(head): prev = None current = head while current is not None: next_node = current.next current.next = prev prev = current current = next_node head = prev return headDeletes the last node of the linked listInserts a new node at the beginning of the linked listReverses the linked listSorts the linked list in ascending order
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