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What Is the "Sandwich Generation

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What is the "sandwich generation"?


Definitions:

Head Instance Variable

A variable, typically in a linked list or similar data structure, that holds a reference to the first element or node.

Null

A special marker used in programming to denote that a variable does not hold any valid object or value at a particular time.

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.

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