Question

N Queen problem using local search & CSP

Asked by: CSecurity

Hello

I'm looking for a source code for N Queen search problem using local search and using CSP.
waiting for your useful links. It's not important it's language but better in C/C++

thanks

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Asked On
2009-10-30 at 11:35:11ID24859025
Tags

artificial intelligence algorithms C++

Topics

Algorithms

,

C Programming Language

,

C++ Programming Language

Participating Experts
2
Points
500
Comments
5

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Answers

 

by: jkrPosted on 2009-10-30 at 11:52:10ID: 25705816

 

by: CSecurityPosted on 2009-11-01 at 03:42:23ID: 25713389

thank you very much jkr
I requested n Queen problem using local search and CSP. but your links are not
no problem, thanks anyway...

 

by: KdoPosted on 2009-11-13 at 06:07:20ID: 25813948

Hi CSecurity,

It seems that the term CSP has a couple of meanings here.  The "CSecurity Poser" and what you probably intended, "Constraint Satisfaction Problem".  (Sorry -- too much cold medicine, I guess.....)

It would seem that all of the "local search" requirements are met if the variables used in the algorithm are encapsulated into a single structure.

typedef struct
(
  int Board[100];   // limit the board to 100x100
  int Dimension;    // Number of rows/columns in the board.  Assumes a square structure.
  int Index;           // The relative column currently being checked.
  int Column;        // The absolute column currently being checked.
  int CheckIndex; //
  int Increment;    // Bias to the next column.  (Relatively prime to the board size)
  int Status;          // Return code, where appropriate.
);

The Index variable is simply the count (0 to N-1) of the column being checked.  Depending on the strictness of the term "local variable" you may not be able to use recursion.  If not, simply use the Index variable to control the column being tested, and the CheckIndex variable as the index of the column being tested against.


Kent

 

by: CSecurityPosted on 2009-11-15 at 03:05:06ID: 31648166

did not get my answer but I did want to close this question :)

thanks anyway for spending time for me
have a nice day, guys

20120131-EE-VQP-002

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