Kurssisisältö
Breadth First Search
Breadth First Search
Restoring Shortest Path
BFS searching shortest path
That was hard! But now let's implement a method to find the shortest path between two vertices, not only length.
To do that, you have to know for each node where did it come from. So, let's add list pred that contains predcessor for i node. At the beginning, pred contains only -1.
Swipe to start coding
Modify bfs(start, end) so it returns a list of vertices between start and end nodes (both inclusive). If there is no path, return an empty list.
Do not forget to keep the path.
Vaihda työpöytään todellista harjoitusta vartenJatka siitä, missä olet käyttämällä jotakin alla olevista vaihtoehdoistaKiitos palautteestasi!
Restoring Shortest Path
BFS searching shortest path
That was hard! But now let's implement a method to find the shortest path between two vertices, not only length.
To do that, you have to know for each node where did it come from. So, let's add list pred that contains predcessor for i node. At the beginning, pred contains only -1.
Swipe to start coding
Modify bfs(start, end) so it returns a list of vertices between start and end nodes (both inclusive). If there is no path, return an empty list.
Do not forget to keep the path.
Vaihda työpöytään todellista harjoitusta vartenJatka siitä, missä olet käyttämällä jotakin alla olevista vaihtoehdoistaKiitos palautteestasi!
Vaihda työpöytään todellista harjoitusta vartenJatka siitä, missä olet käyttämällä jotakin alla olevista vaihtoehdoista