#19014: Tarjan Strongly Connected Components Algorithm
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       Reporter:  borassi            |        Owner:
           Type:  enhancement        |       Status:  needs_review
       Priority:  major              |    Milestone:  sage-6.9
      Component:  graph theory       |   Resolution:
       Keywords:  Strongly           |    Merged in:
  connected components, Tarjan       |    Reviewers:
        Authors:  Michele Borassi    |  Work issues:
Report Upstream:  N/A                |       Commit:
         Branch:                     |  8df530ab5c761501b10ba397e361889b4be91833
  u/borassi/tarjan_strongly_connected_components_algorithm|     Stopgaps:
   Dependencies:                     |
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Comment (by dcoudert):

 Well, if you look at the code you will see that it is not so orthogonal:
 if the backend has the method, we use it. Otherwise we count the number of
 scc, and so we rely on this ticket.
 We need a backward BFS/DFS to get ride of this dependency.

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Ticket URL: <http://trac.sagemath.org/ticket/19014#comment:9>
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