Question: You run DFS in a graph G. Let u and v be vertices such that u is an ancestor of v in the DFS tree.

You run DFS in a graph G. Let u and v

You run DFS in a graph G. Let u and v be vertices such that u is an ancestor of v in the DFS tree. Then pre(u)

                        

                                            

                    

                    

                        

                            
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