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来自「浙江大学计算机学院数据结构课程的教学课件」· HTM 代码 · 共 48 行
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<font color="#FF0000">Abstract data type <br><font color="#000000">----------------------------------------------------------------------------------------</font></font></font></b><b><font face="Arial, Helvetica, sans-serif" size="4" color="#000000">
structure <font color="#FF0000">Graph </font>is
<font color="#0033CC">object:</font> a nonempty set of vertices and a set of undirected
edges, where each edge is a pair of vertices.
<font color="#0033CC"> function: </font> for all graph <img src="image/belong.gif" width="13" height="12"> Graph, <i>v, v1, and v2 </i> <img src="image/belong.gif" width="13" height="12"> Vertices
<font color="#FF0000">Graph Create()</font> ::= return an empty graph.
<font color="#FF0000"> Graph InsertVertex( graph,v ) </font>
::= return a graph with v inserted. v
has no incident edges.
<font color="#FF0000"> Graph Insertedge( graph, v1 , v2 )</font>
::= return a graph with a new edge
between v1 and v2 .
<font color="#FF0000">Graph DeleteVertex( graph,v ) </font>
::= return a graph in which v and all
edges incident to it are removed.
<font color="#FF0000"> Graph DeleteEdge(graph, v1 , v2)</font>
::= return a graph in which the edge
(v1 , v2) is removed. Leave the
incident nodes in the graph.
<font color="#FF0000"> Boolean IsEmpty( graph ) </font>
::= if ( graph == empty graph)
return TRUE else return FALSE.
<font color="#FF0000"> List Adjacent( graph, v ) </font>
::= return a list of all vertices that are
adjacent to v.
</font></b></pre>
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