Which of the following data structure is used to convert postfix expression to infix expression?
A. Stack
B. Queue
C. Linked List
D. Heap
Answer: Option A
A. Stack
B. Queue
C. Linked List
D. Heap
Answer: Option A
What is the time complexity of push operation in a stack implemented using an array?
A. O(1)
B. O(n)
C. O(log n)
D. O(n log n)
What is the stack's behavior when it's described as LIFO?
A. Last In First Out
B. Last In Last Out
C. First In First Out
D. First In Last Out
How can you implement a stack using a linked list?
A. By using a singly linked list
B. By using a doubly linked list
C. By using a circular linked list
D. All of the above
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