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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?
- a)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.
- b)Possible if size of linked list is even.
- c)Possible if size of linked list is odd
- d)Possible if X is not first node. Use following two steps (a) Copy the data of next of X to X. (b) Delete next of X.
Correct answer is option 'A'. Can you explain this answer?
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Given pointer to a node X in a singly linked list. Only one pointer is...
Explanation:
We have given a pointer to a node X in a singly linked list. We need to delete the node X from the given linked list. It can be done if X is not the last node in the linked list. We can follow the below steps to delete the node X from the linked list.
Steps to delete node X from linked list:
Reason:
We can not delete a node from a singly linked list if we only have a pointer to that node. Because in a singly linked list, we can traverse only in one direction (forward direction) and we can not go back to the previous node. So, we can not update the next pointer of the previous node of the node X to skip the node X. But, we can delete the node X if we have a pointer to the next node of X because we can copy the data of the next node of X to X and delete the next node of X to skip the node X.
Example:
Suppose we have a linked list 10 -> 20 -> 30 -> 40 -> 50 and we have a pointer to node 30. We need to delete node 30 from the linked list.
Step 1: Copy the data of next of X to X. In our case, copy the data of node 40 to node 30. So, the linked list becomes 10 -> 20 -> 40 -> 40 -> 50.
Step 2: Delete next of X. In our case, delete node 40. So, the linked list becomes 10 -> 20 -> 40 -> 50. Now, node 30 is deleted from the linked list.
Therefore, option 'A' is the correct answer.
We have given a pointer to a node X in a singly linked list. We need to delete the node X from the given linked list. It can be done if X is not the last node in the linked list. We can follow the below steps to delete the node X from the linked list.
Steps to delete node X from linked list:
- Copy the data of next of X to X.
- Delete next of X.
Reason:
We can not delete a node from a singly linked list if we only have a pointer to that node. Because in a singly linked list, we can traverse only in one direction (forward direction) and we can not go back to the previous node. So, we can not update the next pointer of the previous node of the node X to skip the node X. But, we can delete the node X if we have a pointer to the next node of X because we can copy the data of the next node of X to X and delete the next node of X to skip the node X.
Example:
Suppose we have a linked list 10 -> 20 -> 30 -> 40 -> 50 and we have a pointer to node 30. We need to delete node 30 from the linked list.
Step 1: Copy the data of next of X to X. In our case, copy the data of node 40 to node 30. So, the linked list becomes 10 -> 20 -> 40 -> 40 -> 50.
Step 2: Delete next of X. In our case, delete node 40. So, the linked list becomes 10 -> 20 -> 40 -> 50. Now, node 30 is deleted from the linked list.
Therefore, option 'A' is the correct answer.
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Community Answer
Given pointer to a node X in a singly linked list. Only one pointer is...
Following are simple steps.
struct node *temp = X->next;
X->data = temp->data;
X->next = temp->next;
free(temp);
X->data = temp->data;
X->next = temp->next;
free(temp);
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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?a)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.b)Possible if size of linked list is even.c)Possible if size of linked list is oddd)Possible if X is not first node. Use following two steps (a) Copy the data of next of X to X. (b) Delete next of X.Correct answer is option 'A'. Can you explain this answer?
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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?a)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.b)Possible if size of linked list is even.c)Possible if size of linked list is oddd)Possible if X is not first node. Use following two steps (a) Copy the data of next of X to X. (b) Delete next of X.Correct answer is option 'A'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about 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?a)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.b)Possible if size of linked list is even.c)Possible if size of linked list is oddd)Possible if X is not first node. Use following two steps (a) Copy the data of next of X to X. (b) Delete next of X.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 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?a)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.b)Possible if size of linked list is even.c)Possible if size of linked list is oddd)Possible if X is not first node. Use following two steps (a) Copy the data of next of X to X. (b) Delete next of X.Correct answer is option 'A'. Can you explain this answer?.
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