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This is my homework. And I don't want to ask for solution of any kind. I just want some clue, hint, strategy to start. :-w



P/s : I have solved the n queens problem using stack before, but I...

ok i fixed it , thanks a lot. i know what you mean now.:cool:

Sorry I don't know what you mean ? :-o

I created a object qq which belongs to the Nqueens class. Then use object qq to activate the method solution ( method solution in the Nqueens class).
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I need to solve the N queens problem (place n queens on a chess board size nxn so that the queens don't attack each other). Consist of 4 class :

Queen.java : hold the row and column of the queen...

@Norm : thanks, I am trying to add the System.out.println to each section to see what is going on.

Edit: I think I figure out the error. Thanks again Norm, your trick works.:cool:

This is what I got from running those codes:

Please help me, I got stuck on this one from yesterday til now. Long story short : I have to build an java apps for doing polynomial : addition, subtraction, derivative .... The data structure chosen...