Tree - Parent
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A parent is a node that has:
Each element (node) in a tree has exactly one parent, with the exception of the root element, which has none.
For a child, it's the first ancestor (ie first ascendant)
A parent is a node that has:
Each element (node) in a tree has exactly one parent, with the exception of the root element, which has none.
For a child, it's the first ancestor (ie first ascendant)