Sets of Edges

The data type edge_set can be used to store a subset of the edges of graphs. Sets of Edges are specialized versions of Sets.

Example of how a set of edges can be used

Strengths

• all operations, except for clear(), need constant time
• clear() needs time proportional to the number of edges in the set
• efficient iteration over the set (proportional to number of edges in the set)
• edges appear at most once in the set

Disadvantages

• space proportional to number of edges in the corresponding graph

Tips

• Use Sets of Edges to store edges of a graph if you only need set operations
• or you want to eliminate multiple copies of each edge.
• If you need more operations use Lists of edges.

See also:

Sets

Sets of Nodes

Linear Lists

Manual Entries:

Manual Page Sets of Edges

Iteration