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If we implement a queue with a linked list by keeping track of a front pointer and a rear pointer then which of these pointers will change during insertion into an empty queue?
- a)Front pointer changes
- b)Rear pointer changes
- c)Front pointer does not changes
- d)Rear pointer does not changes
Correct answer is option 'A,B'. Can you explain this answer?
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Most Upvoted Answer
If we implement a queue with a linked list by keeping track of a front...
Explanation:
When implementing a queue with a linked list, we usually keep track of a front pointer and a rear pointer. The front pointer points to the first element in the queue, while the rear pointer points to the last element in the queue. These pointers help us maintain the order and structure of the queue.
Insertion into an empty queue:
When inserting an element into an empty queue, both the front pointer and the rear pointer need to be updated. This is because there are no existing elements in the queue, so the new element will become both the first and the last element.
Here's a step-by-step explanation of how the front and rear pointers change during insertion into an empty queue:
1. Initially, the front pointer and the rear pointer are both null, indicating that the queue is empty.
2. When a new element is inserted into the empty queue, it becomes both the first and the last element.
3. The front pointer is updated to point to the new element, as it is now the first element in the queue.
4. The rear pointer is also updated to point to the new element, as it is now the last element in the queue.
5. After the insertion, both the front pointer and the rear pointer point to the new element, indicating that it is the only element in the queue.
Therefore, during insertion into an empty queue, both the front pointer and the rear pointer change. The front pointer is updated to point to the new element, while the rear pointer is also updated to point to the new element.
Summary:
In summary, when implementing a queue with a linked list and inserting an element into an empty queue, both the front pointer and the rear pointer change. The front pointer is updated to point to the new element, indicating that it is now the first element in the queue. The rear pointer is also updated to point to the new element, indicating that it is now the last element in the queue.
When implementing a queue with a linked list, we usually keep track of a front pointer and a rear pointer. The front pointer points to the first element in the queue, while the rear pointer points to the last element in the queue. These pointers help us maintain the order and structure of the queue.
Insertion into an empty queue:
When inserting an element into an empty queue, both the front pointer and the rear pointer need to be updated. This is because there are no existing elements in the queue, so the new element will become both the first and the last element.
Here's a step-by-step explanation of how the front and rear pointers change during insertion into an empty queue:
1. Initially, the front pointer and the rear pointer are both null, indicating that the queue is empty.
2. When a new element is inserted into the empty queue, it becomes both the first and the last element.
3. The front pointer is updated to point to the new element, as it is now the first element in the queue.
4. The rear pointer is also updated to point to the new element, as it is now the last element in the queue.
5. After the insertion, both the front pointer and the rear pointer point to the new element, indicating that it is the only element in the queue.
Therefore, during insertion into an empty queue, both the front pointer and the rear pointer change. The front pointer is updated to point to the new element, while the rear pointer is also updated to point to the new element.
Summary:
In summary, when implementing a queue with a linked list and inserting an element into an empty queue, both the front pointer and the rear pointer change. The front pointer is updated to point to the new element, indicating that it is now the first element in the queue. The rear pointer is also updated to point to the new element, indicating that it is now the last element in the queue.
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Community Answer
If we implement a queue with a linked list by keeping track of a front...
If the queue is implemented with a linked list, keeping track of a front pointer, Only rear pointers will change during an insertion into a non-empty queue.
A queue data structure can be used to implement the least recently used (LRU) page fault algorithm and Quicksort algorithm.
When the queue is empty both the pointers are initialized to NULL front ptp = rear ptp = NULL
Now, when a new node is inserted into the linked list both the front and a rear pointer will point to the new node.
After that, whenever a new node will be inserted the rear ptp will change and point to the new node.
As we know that ptp is a pointer.
Hence, the correct options are (A) and (B).
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If we implement a queue with a linked list by keeping track of a front pointer and a rear pointer then which of these pointers will change during insertion into an empty queue?a)Front pointer changesb)Rear pointer changesc)Front pointer does not changesd)Rear pointer does not changesCorrect answer is option 'A,B'. Can you explain this answer?
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If we implement a queue with a linked list by keeping track of a front pointer and a rear pointer then which of these pointers will change during insertion into an empty queue?a)Front pointer changesb)Rear pointer changesc)Front pointer does not changesd)Rear pointer does not changesCorrect answer is option 'A,B'. 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 If we implement a queue with a linked list by keeping track of a front pointer and a rear pointer then which of these pointers will change during insertion into an empty queue?a)Front pointer changesb)Rear pointer changesc)Front pointer does not changesd)Rear pointer does not changesCorrect answer is option 'A,B'. 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 If we implement a queue with a linked list by keeping track of a front pointer and a rear pointer then which of these pointers will change during insertion into an empty queue?a)Front pointer changesb)Rear pointer changesc)Front pointer does not changesd)Rear pointer does not changesCorrect answer is option 'A,B'. Can you explain this answer?.
If we implement a queue with a linked list by keeping track of a front pointer and a rear pointer then which of these pointers will change during insertion into an empty queue?a)Front pointer changesb)Rear pointer changesc)Front pointer does not changesd)Rear pointer does not changesCorrect answer is option 'A,B'. 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 If we implement a queue with a linked list by keeping track of a front pointer and a rear pointer then which of these pointers will change during insertion into an empty queue?a)Front pointer changesb)Rear pointer changesc)Front pointer does not changesd)Rear pointer does not changesCorrect answer is option 'A,B'. 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 If we implement a queue with a linked list by keeping track of a front pointer and a rear pointer then which of these pointers will change during insertion into an empty queue?a)Front pointer changesb)Rear pointer changesc)Front pointer does not changesd)Rear pointer does not changesCorrect answer is option 'A,B'. Can you explain this answer?.
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