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'?
-1
The element itself
0
None of the above
Why is it generally more efficient to check if a stack is empty before popping an element?
To prevent potential errors or exceptions if the stack is empty.
To avoid unnecessary computations within the pop operation.
To ensure the stack pointer is correctly updated.
It doesn't make a significant difference in terms of efficiency.
What is the primary disadvantage of using stacks compared to other data structures?
Slow insertion and deletion at the end
Limited access to elements (only top)
Inability to store duplicate elements
High memory consumption
How does a stack implemented using a linked list handle overflow compared to an array-based implementation?
Both implementations handle overflow similarly.
Linked list implementation also suffers from overflow.
Linked list implementation avoids overflow as long as memory is available.
Linked list implementation prevents overflow by overwriting existing elements.
In the context of memory allocation within a program, what type of stack is used?
Linked List
Call Stack
Queue
Heap
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 is sorted in ascending order.
The input array contains negative numbers.
The input array is very large (millions of elements).
In which scenario would you prefer using a stack over a queue data structure?
Implementing an undo/redo functionality in a text editor.
Storing a collection of songs to be played in a shuffled order.
Simulating a first-in, first-out (FIFO) system.
Managing a print queue where tasks are processed in the order they arrive.
In the context of a dynamic array-based stack, what does amortized analysis help us determine?
The maximum time complexity of a single push operation
The exact number of array resizes
The average time complexity of push operations over a sequence of operations
The minimum space used by the stack
In a backtracking algorithm, what does the act of popping an element from the stack signify?
Backtracking to a previous state
Exploring a new path
Finding the solution
Storing a potential candidate
Which of these is NOT a typical application of stacks?
Undo/Redo functionality in text editors
Managing function calls in a program's execution
Evaluating mathematical expressions (postfix notation)
Storing data in a priority-based order