Ever wonder how a GPS or mapping program calculates the shortest path between two locations? Learn how to quickly find the shortest paths through street, telephone, airline, and other networks.
by Rod Stephens
July 23, 2008
n my Taming Trees series of articles (see the Related Resources for links), I explained how you can store and manipulate hierarchical data. Those articles showed how to build trees, where each node in the tree may have many children.
This series of articles discusses a generalization of trees called networks. In a tree, every node must have exactly one parent node (except for the tree's root node, which has no parent).
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