What is the difference between stack and queue?
Pankajkumar Patel
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Stack : Stack is works on Last in First out (LIFO) principle . Means elements are add and remove only one way .
Queue : Queue is works on First out First out (FIFO) principle . Which means elements are add first into queue is also remove first .
Stack vs QueueFeature Stack QueueDefinition A linear data structure that follows LIFO (Last In, First Out). A linear data structure that follows FIFO (First In, First Out).Insertion/Deletion Happens at the same end (top). Happens at different ends — insert at rear, remove from front.Example Stack of plates — last plate kept is removed first. Queue of people — first person in line is served first.Main Operations push(), pop(), peek() enqueue(), dequeue(), front()
Stack => Last in - First Outyou can see it in Ctrl+Z
Queue => First in - First Outyou can see it in Sending Message
A Stack follows LIFO (Last In First Out), where the last inserted element is removed first. A Queue follows FIFO (First In First Out), where the first inserted element is removed first. Stack operations are Push and Pop, while Queue operations are Enqueue and Dequeue.
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