Which type of linked list allows for more efficient push and pop operations at both ends, making it suitable for implementing a stack?
Both singly and doubly linked lists are equally efficient.
Circular linked list
Singly linked list
Doubly linked list
What is the primary difference between 'pop' and 'peek' operations on a stack?
'Pop' removes the top element, while 'peek' only retrieves its value without removing it.
'Pop' and 'peek' are interchangeable terms for the same operation.
'Pop' is used for stacks, while 'peek' is used for queues.
'Pop' retrieves the top element's value, while 'peek' removes it from the stack.
What is the purpose of the 'top' pointer in an array-based stack implementation?
To track the index of the next available position for insertion
To point to the bottom element of the stack
To store the maximum size of the stack
To store the value of the top element in the stack
Imagine a stack is used to track function calls in a recursive program. What happens to the stack when a function returns?
The corresponding function call is pushed onto the stack.
The corresponding function call is popped from the stack.
The entire stack is cleared.
The stack remains unchanged.
What key advantage does a Deque (Double-ended Queue) offer over a Stack?
Deque allows deletions only at one end.
Deque allows insertions only at one end.
Deque is more memory-efficient than a Stack.
Deque allows insertions and deletions at both ends.
In postfix evaluation, what action is taken when an operand is encountered?
It is ignored.
It triggers the evaluation of operators on the stack.
It is immediately evaluated.
It is pushed onto the stack.
What is a potential drawback of using a linked list-based stack compared to an array-based stack?
Inability to handle dynamic resizing
Increased time complexity for push and pop operations
Limited stack size
Higher memory usage due to the overhead of storing pointers
If you represent an arithmetic expression in postfix notation using a stack, what operation would you perform when encountering an operand (a number)?
Push the operand onto the stack.
Check if the stack is empty.
Pop the top two elements from the stack, perform the operation, and push the result back onto the stack.
Ignore the operand.
You need to implement a stack that can store a large number of items and the maximum number of items is unknown. Which implementation would be more suitable?
Stack using a doubly linked list
Stack using a dynamic array
Stack using a singly linked list
Stack using a fixed-size array
Which of the following operations is NOT typically associated with a Deque?
inject (insert at the front)
peek (view the element at the front without removing)
pop (remove from the rear)
push (insert at the rear)