Which of the following operations is NOT supported by a stack?a)Pushb)...
Enqueue is an operation supported by a queue, not a stack. Enqueue adds an element to the rear end of a queue.
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Which of the following operations is NOT supported by a stack?a)Pushb)...
Operations NOT supported by a stack:
Stack data structure supports various operations, but one operation that is NOT supported by a stack is Enqueue.
- Push: The Push operation is used to add an element to the top of the stack.
- Pop: The Pop operation removes and returns the top element of the stack.
- Peek: The Peek operation allows you to view the top element of the stack without removing it.
- Enqueue: Enqueue operation is not supported by a stack. It is an operation used in a queue data structure to add an element to the rear end of the queue.
Explanation:
- Stacks follow the Last In First Out (LIFO) principle, where elements are added and removed from the same end (top).
- Enqueue operation, on the other hand, is used in a queue data structure where elements are added at the rear end and removed from the front end.
- Stacks do not support Enqueue operation as it goes against the fundamental behavior of a stack.
- If you need to enqueue elements, you would use a queue data structure instead of a stack.
In conclusion, stacks support Push, Pop, and Peek operations, but do not support Enqueue operation. Each data structure has its own set of supported operations based on its design and intended use.