. "depth first search" . "depth-first search" . "Depth-first search" . "Depth-limited search" . . "preorder" . "depth-first" . "Depth-first search#Output of a depth-first search" . . "Depth-first search#Vertex orderings" . "depth first" . "DFS algorithm" . "tree edge" . . "depth" . . "Reverse postorder" . "Traditional depth-first search" . . . . "back edge" . "Depth-first search" . . . . . "DFS" . . . . "depth-first search trees" . "depth-first order" . . "depth-first traversal" . "Depth-first_search#Applications" .