TU Wien:Diskrete Mathematik für Informatik VU (Drmota)/Übungen WS20/Beispiel 24

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Modify Dijkstra's algorithm such that it finds a path whose longest edge is as short as possible and apply it to the first graph in exercise 16, starting at .

Graph from exercise 16: TU Wien-Diskrete Mathematik für Informatik VU (Drmota)-Übungen WS20-Beispiel 24 - Graph 16.png


Lösungsvorschlag[edit | edit source]

Instead of considering the weights for the path until a vertex, consider only the weights of the currently available edges.

Iteration v0 v1 v2 v3 v4 v5 v6 v7 v8 v9 Auswahl Vorgänger
0 0 v0
1 1 5 5 8 v1 v0
2 4 7 5 1 v9 v1
3 3 4 7 1 v7 v9
4 1 4 3 7 5 v2 v7
5 4 4 3 4 5 v5 v7
6 3 1 4 5 v4 v5
7 3 1 5 v6 v4
8 3 4 v3 v5
9 4 v8 v6