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Impara Restoring Shortest Path | Practice
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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.

Compito

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.

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Sezione 2. Capitolo 4
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Completion rate improved to 7.69

book
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.

Compito

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.

Switch to desktopCambia al desktop per esercitarti nel mondo realeContinua da dove ti trovi utilizzando una delle opzioni seguenti
Tutto è chiaro?

Come possiamo migliorarlo?

Grazie per i tuoi commenti!

close

Awesome!

Completion rate improved to 7.69

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