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93 lines
2.4 KiB
Java
93 lines
2.4 KiB
Java
/* ========================================================================
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* PlantUML : a free UML diagram generator
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* ========================================================================
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*
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* (C) Copyright 2009-2024, Arnaud Roques
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*
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* Project Info: https://plantuml.com
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*
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* If you like this project or if you find it useful, you can support us at:
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*
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* https://plantuml.com/patreon (only 1$ per month!)
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* https://plantuml.com/paypal
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*
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* This file is part of PlantUML.
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*
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* PlantUML is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* PlantUML distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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* License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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*
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*
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* Original Author: Arnaud Roques
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*
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*
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*/
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package net.sourceforge.plantuml.sudoku;
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import java.util.Random;
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import net.sourceforge.plantuml.StringUtils;
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import net.sourceforge.plantuml.utils.Log;
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public class SudokuDLX implements ISudoku {
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private final String tab[];
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private final long seed;
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private final long rate;
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public SudokuDLX(Long seed) {
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if (seed == null) {
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this.seed = Math.abs(new Random().nextLong());
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} else {
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this.seed = Math.abs(seed.longValue());
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}
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final DLXEngine engine = new DLXEngine(new Random(this.seed));
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final String s = engine.generate(10000, 100000);
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rate = engine.rate(s.replace("\n", "").trim());
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tab = s.split("\\s");
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}
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public long getRatting() {
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return rate;
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}
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public long getSeed() {
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return seed;
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}
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public int getGiven(int x, int y) {
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final char c = tab[x].charAt(y);
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if (c == '.') {
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return 0;
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}
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return c - '0';
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}
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public void print() {
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for (String s : tab) {
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Log.println(s);
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}
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Log.println("Rate=" + rate);
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Log.println("Seed=" + StringUtils.goUpperCase(Long.toString(seed, 36)));
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}
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public static void main(String[] args) {
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for (int i = 0; i < 1; i++) {
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final SudokuDLX sudoku = new SudokuDLX(null);
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sudoku.print();
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}
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}
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}
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