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>>>>> tag v1.26.5+1 for changeset b74429b0f5c4
author Franz Glasner <fzglas.hg@dom66.de>
date Sat, 11 Oct 2025 17:17:30 +0200
parents b50eed0cc0ef
children
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1 /*====================================================================*
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2 - Copyright (C) 2001 Leptonica. All rights reserved.
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3 -
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4 - Redistribution and use in source and binary forms, with or without
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5 - modification, are permitted provided that the following conditions
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6 - are met:
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7 - 1. Redistributions of source code must retain the above copyright
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8 - notice, this list of conditions and the following disclaimer.
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9 - 2. Redistributions in binary form must reproduce the above
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10 - copyright notice, this list of conditions and the following
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11 - disclaimer in the documentation and/or other materials
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12 - provided with the distribution.
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13 -
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14 - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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15 - ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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16 - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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17 - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANY
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18 - CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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19 - EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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20 - PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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21 - PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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22 - OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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23 - NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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24 - SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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25 *====================================================================*/
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27 #ifndef SUDOKU_H_INCLUDED
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28 #define SUDOKU_H_INCLUDED
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30 /*!
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31 * \file sudoku.h
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32 *
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33 * <pre>
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34 * The L_Sudoku holds all the information of the current state.
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35 *
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36 * The input to sudokuCreate() is a file with any number of lines
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37 * starting with '#', followed by 9 lines consisting of 9 numbers
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38 * in each line. These have the known values and use 0 for the unknowns.
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39 * Blank lines are ignored.
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40 *
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41 * The %locs array holds the indices of the unknowns, numbered
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42 * left-to-right and top-to-bottom from 0 to 80. The array size
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43 * is initialized to %num. %current is the index into the %locs
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44 * array of the current guess: locs[current].
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45 *
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46 * The %state array is used to determine the validity of each guess.
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47 * It is of size 81, and is initialized by setting the unknowns to 0
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48 * and the knowns to their input values.
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49 * </pre>
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50 */
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52 struct L_Sudoku
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53 {
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54 l_int32 num; /*!< number of unknowns */
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55 l_int32 *locs; /*!< location of unknowns */
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56 l_int32 current; /*!< index into %locs of current location */
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57 l_int32 *init; /*!< initial state, with 0 representing */
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58 /*!< the unknowns */
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59 l_int32 *state; /*!< present state, including inits and */
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60 /*!< guesses of unknowns up to %current */
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61 l_int32 nguess; /*!< shows current number of guesses */
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62 l_int32 finished; /*!< set to 1 when solved */
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63 l_int32 failure; /*!< set to 1 if no solution is possible */
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64 };
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65 typedef struct L_Sudoku L_SUDOKU;
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68 /*! For printing out array data */
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69 /*! Sudoku Output */
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70 enum {
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71 L_SUDOKU_INIT = 0,
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72 L_SUDOKU_STATE = 1
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73 };
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75 #endif /* SUDOKU_H_INCLUDED */
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