forked from TASC/HLRS-OpenMP-GPU-2024
97 lines
2.4 KiB
C
97 lines
2.4 KiB
C
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/*
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* This file is part of Christian's OpenMP Task-parallel Sudoku Solver
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*
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* Copyright (C) 2013 by Christian Terboven <christian@terboven.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#include <iostream>
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#include <iomanip>
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#include <fstream>
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#include <vector>
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#define ACCESS(x, y) (this->field_size*(x) + (y))
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/**
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* @brief Representation of the Sudoku board, includes solver and utility functions
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*/
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class CSudokuBoard
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{
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public:
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CSudokuBoard(int fsize, int bsize);
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CSudokuBoard(const CSudokuBoard& other);
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~CSudokuBoard(void);
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inline int getNumSolutions() const {
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return this->solutions;
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}
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inline void incrementSolutionCounter() {
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if (this->solutions == -1)
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this->solutions = 1;
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else
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this->solutions++;
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}
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inline int getFieldSize() const {
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return this->field_size;
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}
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inline int getBlockSize() const {
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return this->block_size;
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}
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inline int get(int x, int y) const {
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return this->field[ACCESS(x,y)];
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}
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inline void set(int x, int y, int value) {
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this->field[ACCESS(x, y)] = value;
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}
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/**
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* Read Sudoku template from file
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* @param filename name of file to read input from
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* @return true if reading file was successful, false if not
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*/
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bool loadFromFile(char *filename);
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/**
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* Print the Sudoku board to stdout
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*/
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void printBoard();
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/**
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* Check whether value already used
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* @return true if already used, false if not
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*/
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bool check(int x, int y, int value);
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private:
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bool checkHorizontal(int y, int value);
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bool checkVertical(int x, int value);
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bool checkBox(int x, int y, int value);
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int field_size;
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int block_size;
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int *field;
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int solutions;
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};
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