Data Structures · Question 1 · Easy
Which data structure works on the Last-In-First-Out (LIFO) principle?
- Queue
- Circular queue
- Stack
- Priority queue
Answer and explanation
Answer: C. Stack
Explanation: In a stack, the element pushed most recently is the first one popped, which is LIFO. Queues are FIFO, and a priority queue serves elements by priority.
Next: Starting with an empty stack, Kavya performs: push(5), push(8), push(3)…
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