How can you implement a queue using two stacks efficiently?
A. By using one stack for enqueue and the other for dequeue
B. By using one stack to reverse elements and the other to process them
C. By using two stacks to manage elements and orders
D. By using one stack to store elements and the other to manage order
Answer: Option A
This Question Belongs to Data Structure >> Queues In Data Structures
What is the main characteristic of a queue data structure?
A. Last In, First Out (LIFO)
B. First In, First Out (FIFO)
C. Last In, Last Out (LILO)
D. First In, Last Out (FILO)
Which of the following operations is used to add an element to the end of a queue?
A. Enqueue
B. Dequeue
C. Peek
D. Push
What is the time complexity of the dequeue operation in a queue implemented using a linked list?
A. O(1)
B. O(n)
C. O(log n)
D. O(n log n)
Which queue implementation is used for circular buffering?
A. Circular queue
B. Priority queue
C. Double-ended queue
D. Simple queue
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