///edges of the %DFS paths.

     ///edges of the %DFS paths.

     typedef typename TR::PredMap PredMap;

     typedef typename TR::PredMap PredMap;

     ///The type of the map that stores the distances of the nodes.

     ///The type of the map that stores the distances of the nodes.

     typedef typename TR::DistMap DistMap;

     typedef typename TR::DistMap DistMap;

     /// Constructor.

     /// Constructor.

     DfsWizard() : TR() {}

     DfsWizard() : TR() {}

     /// Constructor that requires parameters.

     /// Constructor that requires parameters.