What is the difference between stack and queue?
Pankajkumar Patel
The main difference between a stack and a queue is the order of data operations— how elements are added and removed. In a stack, data is added last and removed first (Last In, First Out – LIFO), whereas in a queue, data is added first and removed first (First In, First Out – FIFO). Example of Stack: Function evaluation Examples of Queue:Task scheduling, message queues and many more
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
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