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Leaf node

In computer science, a leaf node is a node of a tree data structure that has zero child nodes. Often, leaf nodes are the nodes farthest from the root node. Some trees only store data in leaf nodes.

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East Hampton North, New York

... with no husband present, and 39.0% are non-families. 31.9% of all households are made up of individuals and 16.8% have someone living alone who is 65 years of age ...