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;
Question
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;
Solution
The correct way to delete a node from a singly linked list in C++ is:
Node* temp = node; node = temp->next; delete temp;
Here's a step-by-step explanation:
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Create a temporary pointer and point it to the node you want to delete. This is done to keep a reference to the node you want to delete because once you change the 'node' pointer, you will lose the reference to the current node.
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Change the 'node' pointer to point to the next node in the list. This effectively removes the current node from the list because no other node is pointing to it.
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Delete the node using the 'delete' keyword and the temporary pointer. This frees up the memory that was allocated for the node.
Similar Questions
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 requires traversing the entire list.c)It involves updating two pointers.d)It requires finding the middle of the list.
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
Write a program in C, to create a link list and perform operation such as inserting or deleting a node from list
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 .
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 tw
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