reverseBreadthFirstSearch -- runs a reverse breadth first search on the digraph and returns a list of the vertexSet in the order they were discovered

Synopsis

• Usage:

  bfs = reverseBreadthFirstSearch(D,v)

• Inputs:
  • D, a digraph,
• Outputs:
  • bfs, a list, A list of the vertexSet of D in order discovered by the breadth first search

Description

i1 : D = digraph ({{0,1},{0,2},{2,3},{3,4},{4,2}},EntryMode=>"edges")

o1 = Digraph{0 => {1, 2}}
             1 => {}
             2 => {3}
             3 => {4}
             4 => {2}

o1 : Digraph

i2 : bfs = reverseBreadthFirstSearch(D,2)

o2 = {{2}, {4, 0}, {3}}

o2 : List

See also

• breadthFirstSearch -- runs a breadth first search on the digraph starting at a specified node and returns a list of the vertices in the order they were discovered
• depthFirstSearch -- runs a depth first search on the digraph or digraph and returns the discovery time and finishing time for each vertex in the digraph
• topologicalSort -- outputs a list of vertices in a topologically sorted order of a DAG.