libboost-graph1.42-dev 1.42.0-4ubuntu3 (i386 binary) in ubuntu precise

 This package forms part of the Boost C++ Libraries collection.
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 Graphs are mathematical abstractions that are useful for solving
 many types of problems in computer science. Consequently, these
 abstractions must also be represented in computer programs. A
 standardized generic interface for traversing graphs is of utmost
 importance to encourage reuse of graph algorithms and data structures.