Difference between revisions of "TADM2E 6.7"

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=== Part B ===
 
=== Part B ===
  
Yes, as long as negative weight edges are not allowed.
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No. Example would be the following graph:
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A -1-> B
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B -1-> C
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A -3-> C
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Shortest path from A to C is A->B->C.
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If we increase all weights by two, shortest path will change to A->C

Revision as of 20:40, 18 December 2015

Part A

Probably yes. Using Kruskal's algorithm, you'll still get the same insertion order of edges, regardless of how much you add or subtract from the edge weighting.


Part B

No. Example would be the following graph:

A -1-> B B -1-> C A -3-> C

Shortest path from A to C is A->B->C.

If we increase all weights by two, shortest path will change to A->C