GATE CSE
First time here? Checkout the FAQ!
x
0 votes
98 views
When the graph contain negetive weight edges but no negetive weight cycle, in this case can dijkstra leads to incorrect result?
asked in Algorithms by Boss (6k points)   | 98 views

1 Answer

+2 votes
Why dijkastra provide wrong result for -ve edge. Because dijkastra supports increments of distance, when it goes from one vertex to other. In the middle if we get some -ve edge, this assumption will be violated. That is why dijkastra gives incorrect result for some cases.

Dijkastra doesnot check if there is a -ve edge or not. If it's assumtion is true, dijkastra even give correct result with -ve weight edges too.
answered by Veteran (51.8k points)  
Top Users Feb 2017
  1. Arjun

    5386 Points

  2. Bikram

    4230 Points

  3. Habibkhan

    3952 Points

  4. Aboveallplayer

    3086 Points

  5. Debashish Deka

    2564 Points

  6. sriv_shubham

    2318 Points

  7. Smriti012

    2240 Points

  8. Arnabi

    2008 Points

  9. mcjoshi

    1696 Points

  10. sh!va

    1684 Points

Monthly Topper: Rs. 500 gift card

20,863 questions
26,022 answers
59,696 comments
22,133 users