6 digits combination Post: 302901711

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Top Forums Programming 6 digits combination Post 302901711 by bakunin on Thursday 15th of May 2014 06:54:55 AM

05-15-2014

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Moderator's Comments:

This is a very interesting problem, but:

1. it has nothing to do with UNIX or UNIX tools. It is just an algorithmic challenge. This wouldn't be so bad on itself, but see below.

2. You claimed that this is not homework and you are doing it just out of interest. Still, in this case you would have at least undertaken some thinking on how to solve it and presented them here along with the problem statement. What is the point in trying to solve puzzles if your only genuine contribution is to ask other people to solve it for you?

3. If this would have at least a remote real-world impact you would have limited the tools - languages, platforms, ... in some way. that you didn't reinforces my point that is problem was not posed upon you by yourself but by outside request - homework, take-home question in a job interview or the like - to be precise. It would be understandable for a professor/possibly hiring company/... to test your algorithmic skills by not limiting to any platform or language environment, but it is highly unlikely for you not to have any personal preference at all. For what is worth, you would have to understand the solution once it is presented to you and this is possible only with a language at least remotely known by you. What would you have done would anyone have written and posted a program in FORTH, APL2, ALGOL68 or another outlandish language, hm?

As long as you can't disprove my suspicion i close this thread for most probably being homework. Open a thread in the homework forum with the correct identification necessary there.

All the others: please refrain from providing solutions to dubious (albeit concededly interesting) problems. We have a "homework rule" in place for a reason and we do not want to encourage anybody breaking it.

bakunin

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sudoku_generator

sudoku_generator(1)						   User Commands					       sudoku_generator(1)

NAME

       sudoku_generator - generate and solve Sudoku puzzles

SYNOPSIS

       sudoku_generator [-n|--non-sym] [-d|--dump] [givens_count]
       sudoku_generator -s|--solve|-p|--print sudoku_dump

DESCRIPTION

       sudoku_generator  generates, solves and prints Number Place puzzles, so called Sudokus.	A Sudoku puzzle consists of 9 x 9 cells subdivided
       into 9 regions with 3 x 3 cells. The rules are simple. There have to be the numbers from 1 to 9 in every row, column and region.

       givens_count
	      Number of givens (<= 81). Default is 36.	Generation of Sudoku puzzles with less than 26 givens takes very long.

       sudoku_dump
	      String with 81 * 1-9 or _ (+ ignored).

OPTIONS

       -n, --non-sym
	      Generate a non-symmetric Sudoku puzzle. Default is symmetric.

       -d, --dump
	      Dump the generated Sudoku puzzle (don't print).

       -s, --solve sudoku_dump
	      Solve a Sudoku puzzle.

       -p, --print sudoku_dump
	      Print a Sudoku puzzle.

       -v, --version
	      Print version information and exit.

       -h, --help
	      Print help message and exit.

COPYRIGHT

       Copyright (C) 2005-2010, Thomas Gunther <tom@toms-cafe.de>
       This GPL program comes with ABSOLUTELY NO WARRANTY; this is free software, and you are welcome to redistribute it under certain conditions;
       see the source for details.

sudoku_generator 0.3.5						    April 2010						       sudoku_generator(1)

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