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11 lines
359 B
Python
11 lines
359 B
Python
"""An example of persistence for a directed graph structure. The
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graph is stored as a collection of edges, each referencing both a
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"lower" and an "upper" node in a table of nodes. Basic persistence
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and querying for lower- and upper- neighbors are illustrated::
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n2 = Node(2)
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n5 = Node(5)
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n2.add_neighbor(n5)
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print n2.higher_neighbors()
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""" |