Which of these situations would make a stack unsuitable for solving the 'Next Greater Element' problem efficiently?
The input array has duplicate elements.
The input array contains negative numbers.
The input array is very large (millions of elements).
The input array is sorted in ascending order.
In a 'Next Greater Element' problem, if no greater element exists to the right of an element, what is typically assigned as its 'next greater element'?
0
The element itself
None of the above
-1
How do stacks and heaps differ in terms of element ordering?
Stack has no specific order, while heap maintains elements in sorted order
Stack follows FIFO order, while heap has no specific order
Stack follows LIFO order, while heap maintains a partial ordering
Both stack and heap maintain elements in sorted order, but with different sorting algorithms
Why is it generally more efficient to check if a stack is empty before popping an element?
To avoid unnecessary computations within the pop operation.
It doesn't make a significant difference in terms of efficiency.
To prevent potential errors or exceptions if the stack is empty.
To ensure the stack pointer is correctly updated.
Which data structure is most similar to a deque in terms of functionality?
Heap
Binary Search Tree
Stack
Queue
In a stack, how is the element that was added before the last added element accessed?
By popping the top element first.
By searching the entire stack sequentially.
It's not possible to access elements directly in a stack.
Directly using its index.
In which scenario would you prefer using a stack over a queue data structure?
Managing a print queue where tasks are processed in the order they arrive.
Implementing an undo/redo functionality in a text editor.
Simulating a first-in, first-out (FIFO) system.
Storing a collection of songs to be played in a shuffled order.
What is the time complexity of pushing an element onto a stack implemented using a linked list, assuming the push operation is implemented efficiently?
O(n log n)
O(1)
O(log n)
O(n)
In which scenario would an array-based stack be a more suitable choice than a linked list-based stack?
When frequent insertions and deletions are required in the middle of the stack.
When the stack size is known in advance and relatively small.
When the maximum size of the stack is unknown.
When dealing with a very large dataset where memory usage is critical.
If you implement a stack using a dynamically allocated array, what is the time complexity of pushing an element in the worst-case scenario if you need to resize the array?