The last node of the singly-linked list contains__________....

MCQ

The last node of the singly-linked list contains__________.

Info

NULL

None of the above

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MCQ

The following C function takes a simply-linked list as input argument. It modifies the list by moving the last element to the front of the list and returns the modified list. Some part of the code is left blank. Choose the correct alternative to replace the blank line.
typedef struct node
{
  int value;
  struct node *next;
}Node;

Node *move_to_front(Node *head)
{
  Node *p, *q;
  if ((head == NULL: || (head->next == NULL))
    return head;
  q = NULL; p = head;
  while (p-> next !=NULL)
  {
    q = p;
    p = p->next;
  }
  _______________________________
  return head;
}

q = NULL; p->next = head; head = p;

q->next = NULL; head = p; p->next = head;

head = p; p->next = q; q->next = NULL;

q->next = NULL; p->next = head; head = p;

Discussion

MCQ

A pointer that is used to keep last link of list is called

Head

Initiator

Tail

Terminator

Discussion

MCQ

Consider a linked list of n elements. What is the time taken to insert an element after element pointed by same pointer ?

O(n)

O(log n)

O(n-1)

O(1)

Discussion

MCQ

As memory is allocated dynamically to a linked list, a new node can be inserted anytime in the list. For this, the memory manager maintains a special linked list known as___________.

Free pool

Memory bank

Free storage list

All of the above

Discussion

MCQ

A linked list is made up of a set of objects known as

Nodes

Arrays

Entities

Instances

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Abstract data types

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Trees

Binary Trees

B Trees

Heaps

Hash based structures

Graphs

Mixed

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Medical

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category More Data Structure Topics

Data Structure Basics

Abstract data types

Arrays

Lists

Stacks

Queues

Trees

Binary Trees

B Trees

Heaps

Hash based structures

Graphs

Mixed

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Community Discussion

Similar Questions

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More Data Structure Topics