Stack, heap, and queue are abstract data structures used in computer science to store and organize data. Each of them has its own characteristics and rules for accessing data, which makes them useful for different tasks.
Stack is a data structure where elements are added and removed according to the LIFO (Last In, First Out) principle. The last added element will be the first removed. This can be imagined as a stack of plates: you put a new plate on top, and remove it from the top.
Heap is a data structure where elements are organized according to the heapsort principle, that is, by value. The largest (or smallest) element is always at the root of the heap, and its "children" are smaller (or larger) than it.
Queue is a data structure where elements are added at one end (enqueue) and removed from the other (dequeue) according to the FIFO (First In, First Out) principle. This can be imagined as a queue of people: the first person to come is the first to go, and the one who stands the longest goes.
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