What is the correct sequence of steps to delete a node at the head of a linked list? Question 27Select one: 1. Update the head pointer to point to the next node, 2. Free the memory allocated to the head node, 3. Return the updated linked list 1. Update the next pointer of the head node to null, 2. Free the memory allocated to the head node, 3. Update the head pointer to point to the next node 1. Free the memory allocated to the head node, 2. Update the head pointer to point to the next node, 3. Return the updated linked list
Question
What is the correct sequence of steps to delete a node at the head of a linked list?
Question 27Select one:
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Update the head pointer to point to the next node, 2. Free the memory allocated to the head node, 3. Return the updated linked list
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Update the next pointer of the head node to null, 2. Free the memory allocated to the head node, 3. Update the head pointer to point to the next node
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Free the memory allocated to the head node, 2. Update the head pointer to point to the next node, 3. Return the updated linked list
Solution
The correct sequence of steps to delete a node at the head of a linked list is:
- Update the head pointer to point to the next node,
- Free the memory allocated to the head node,
- Return the updated linked list.
Similar Questions
Given pointer to a node X in a singly linked list. Only one pointer is given, pointer to head node is not given, can we delete the node X from given linked list?Possible if X is not last node. Use following two steps (a) Copy the data of next of X to X. (b) Delete next of X.Possible if size of linked list is even.Possible if size of linked list is oddPossible if X is not first node. Use following two steps (a) Copy the data of next of X to X.
How is the deletion of a node at the end of a Doubly Linked List different from a Singly Linked List?a)It does not require any pointer update.b)It involves updating two pointers.c)It requires traversing the entire list.d)It requires finding the middle of the list
Which of the following code snippets represents the correct way to delete a node from a singly linked list in C++?Group of answer choicesNode* temp = node->next; node = temp; delete temp;delete node;Node* temp = node; node = temp->next; delete temp;Node* temp = node; node->next = temp->next; delete temp;
Delete the node at a given position in a linked list and return a reference to the head node. The head is at position 0. The list may be empty after you delete the node. In that case, return a null value.ExampleAfter removing the node at position , .Function DescriptionComplete the deleteNode function in the editor below.deleteNode has the following parameters:- SinglyLinkedListNode pointer llist: a reference to the head node in the list- int position: the position of the node to removeReturns- SinglyLinkedListNode pointer: a reference to the head of the modified listInput FormatThe first line of input contains an integer , the number of elements in the linked list.Each of the next lines contains an integer, the node data values in order.The last line contains an integer, , the position of the node to delete.Constraints, where is the element of the linked list.Sample Input8206219741593Sample Output20 6 2 7 4 15 9ExplanationThe original list is . After deleting the node at position , the list is .
What one of the following algorithm depicts the correct logic to delete a node from the beginning of a list:1. Mark the first node in the list as current.2. Make START point to the next node in the sequence.3. Release the memory for the node marked as current.1. Mark the first node in the list as current.2. Make START point to the newNode in the sequence.3. Release the memory for the node marked as current.1. Mark the first node in the list as current.2. Make START point to the next node in the sequence.3. Release the memory for the node marked as next.1. Mark the first node in the list as newNode.2. Make START point to the next node in the sequence.3. Release the memory for the node marked as current
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