What is the time complexity of inserting an element into a binary heap-based priority queue in the worst-case scenario?
O(n)
O(1)
O(log n)
O(n log n)
What is the key advantage of using a linked list implementation for a queue over an array-based implementation?
Lower memory usage
Dynamic resizing to prevent overflow
Easier to implement
Faster enqueue and dequeue operations
Which of the following data structures can be efficiently used to implement a priority queue?
Binary Heap
Doubly Linked List
Hash Table
Binary Search Tree
In a circular queue implemented using an array, what is the purpose of the rear pointer?
To point to the element that was most recently enqueued.
To track the number of elements currently present in the queue.
To indicate the next available position for enqueuing an element.
To mark the beginning of the queue in the circular array.
Which of the following operations is NOT efficiently supported by a standard queue data structure?
Enqueue at the rear
Dequeue from the front
Get the front element
Search for a specific element
How does a circular queue determine if it is full?
Front pointer is one position behind the rear pointer (considering wrapping)
Front pointer equals rear pointer
Rear pointer reaches the end of the array
A separate variable keeps track of the number of elements
In a scenario simulating a print queue, where print jobs with higher priority should be executed first, which queue implementation is most suitable?
Priority queue
Simple queue
Deque (Double-ended queue)
Circular queue
You have a queue implemented using a linked list. What is the time complexity of finding the kth element from the front of the queue?
O(k)
O(log k)
You need to implement a queue using two stacks. What is the time complexity of the dequeue operation in the worst-case scenario?
How can you prevent a queue implemented using a linked list from encountering an overflow condition?
Linked list implementation inherently prevents overflow
Implement a check for available memory before each enqueue operation
Use a circular linked list
Use a fixed-size array instead of a linked list