Examlex
Evaluate the expression . Round your answer to three decimal places.
Preorder Processing
A type of tree traversal where each node is processed before its child nodes.
Root Node
The topmost node in a tree data structure, from which all other nodes descend.
Left Subtree
In tree data structures, particularly binary trees, it refers to the subtree that is rooted at the left child of a node.
Link Instance Variable
A variable within an object that refers to another object, typically used in linked structures like linked lists to connect elements together.
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