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Program structure tree

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A program structure tree (PST) is a hierarchical diagram that displays the nesting relationship of single-entry single-exit (SESE) regions, showing the organization of a computer program. Nodes in this tree represent SESE regions of the program, while edges represent nesting regions. The PST is defined for all control flow graphs.

  • Johnson, Richard (1994). "The program structure tree: computing control regions in linear time": 171–185. doi:10.1145/178243.178258. ISBN 089791662X. {{cite journal}}: |chapter= ignored (help); Cite journal requires |journal= (help); Unknown parameter |coauthors= ignored (|author= suggested) (help)



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