Thread: maze solver

  1. #1
    Registered User
    Join Date
    Apr 2010

    maze solver

    Is it possible to solve the maze problem using Depth first search implemented using a stack.

    I think it's impossible. because with the stack implementation you cannot backtrack.

    If you use the recursive implementation of Depth first search you can backtrack.

    Any idea's ?

  2. #2
    Registered User NeonBlack's Avatar
    Join Date
    Nov 2007
    You can't backtrack using a stack? How do you think recursion works?
    I copied it from the last program in which I passed a parameter, which would have been pre-1989 I guess. - esbo

  3. #3
    Registered User
    Join Date
    Apr 2010
    thanks neoblack. Now in the recursive implementation of depth first search how do i print only the successfull path through the maze?

    Please help.

  4. #4
    Algorithm Dissector iMalc's Avatar
    Join Date
    Dec 2005
    New Zealand
    NeonBlack is correct. Whatever can be done through recursion can always be done through maintaining an explicit stack.
    However, it is always much clearer to just use recursion.

    If you maintain an explicit stack then the successful path should exactly match the contents of the stack at the point you find the exit.
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  5. #5
    Registered User
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    Apr 2010
    Oh okay i'll try my best to solve this.
    Last edited by iamnew; 04-28-2010 at 02:36 AM.

  6. #6
    Registered User
    Join Date
    Oct 2008
    Of course it's possible. But solving a maze through breadth first search is a LOT better in my opinion.

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