Examlex
The Hubble law is one of the most important relations in modern astronomy because it ____.
Binary Search Tree
A data structure that stores items (such as numbers) in an organized way, where each node has up to two children, and for any given node, its left descendants are less than the node and its right descendants are greater.
Queue
A collection or list where elements are added from one end (rear) and removed from the other (front), following a first-in-first-out (FIFO) principle.
Stack
A data structure that follows a last in, first out (LIFO) principle, allowing items to be added and removed from the top.
Postorder Traversal
A way of traversing a tree data structure where each node is visited after its children, often used to delete or free nodes and space.
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