solve sudoku

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Use a two-way cross-linked list (or dancing links) to solve a Sudoku game

#include If the previous level is not enough, I wrote a program for solving the sudoku without any optimization. Now we can improve the level and learn how to use a two-way cross-linked list to optimize the time complexity to solve the sudoku game. Instead of using it directly, we must convert it into a "precise coverage model ". Why? I tried to write a program

Java using backtracking method to solve Sudoku example _java

]){return false;}if (k = = matrix[3*m+p/3][3*n+p%3]){return false;}}return true;}/*** Print Solution Time* @return*/Public long Printtime (){return this.timeafter-this.timebefore;}/*** Print Matrix*/public void Showmatrix (){for (int i=0; i{for (int j=0; j{System.out.print (matrix[i][j]+ "");}System.out.println ();}System.out.println ();SYSTEM.OUT.PRINTLN ("Solution Time:" +printtime () + "millisecond");System.out.println ();}public static void Main (string[] args) {int matrix[][] = {{3,0,6,0,5,

DLX to solve Sudoku template Nyoj 722, POJ 2676

Complex Sudoku ratio DFS fast//Space change time #include

[Leetcode 36&37] Valid Sudoku & Sudoku Solver (Sudoku problem)

Title Link: Valid-sudokuImport java.util.arrays;/** * Determine if a Sudoku is valid, according To:sudoku puzzles-the rules.the Sudoku Board Co Uld be partially filled, where empty cells is filled with the character '. A partially filled sudoku which is valid. Note:a Valid Sudoku board (partially filled) is not necessa

[Leetcode] Sudoku Solver Solving Sudoku

Write a program to solve a Sudoku puzzle by filling the empty cells.Empty cells is indicated by the character ‘.‘ .Assume that there would be is only one unique solution.A Sudoku Puzzle ...... and its solution numbers marked in red.The problem of solving Sudoku is the extension on the basis of the previous Valid

A small probe into the solution of Sudoku

-region in which it is located, and find out the list of all possible values S12. For each 3x3 sub-region, S1 the value of all the empty lattices it contains, and find out the list of all the solutions for that subregion S2.3.9 3x3 sub-areas are lined up in three rows. For each row, a combination of the S2 of the three sub-regions it contains, to find the list of solutions for this row S3.4. Find the solution of the whole Sudoku table by combining the

Lintcode Easy title: Valid Sudoku Judge Sudoku is legal

Topic:Judging whether Sudoku is legalplease determine if a Sudoku is valid.The Sudoku may only be populated with partial numbers, where missing numbers are used. Said. Sample Example The following is an example of a legal sudoku. Note that a valid Sudoku (partial padding on

"Leetcode-Interview algorithm classic-java Implementation" "036-valid Sudoku (verified sudoku Chessboard)"

"036-valid Sudoku (verified sudoku chessboard)""leetcode-Interview algorithm classic-java Implementation" "All topics Directory Index"Original QuestionDetermine if a Sudoku is valid, according To:sudoku puzzles-the Rules.The Sudoku board could be partially filled, where empty cells is filled with the character ‘.‘ .  

[Leetcode] Valid Sudoku Verification Sudoku

Determine if a Sudoku is valid, according To:sudoku puzzles-the Rules.The Sudoku board could be partially filled, where empty cells is filled with the character ‘.‘ .A partially filled sudoku which is valid.Note:A Valid Sudoku board (partially filled) is not necessarily solvable. Only the filled cells need to be valida

Poj Sudoku (Sudoku) DFS

Sudoku Time limit:2000 ms Memory limit:65536 K Total submissions:13665 Accepted:6767 Special Judge DescriptionSudoku is a very simple task. A square table with 9 rows and 9 columns is divided to 9 smaller squares 3x3 as shown on the figure. in some of the cells are written decimal digits from 1 to 9. the other cells are empty. the goal is to fill the empty cells with decimal digits from 1 to 9, one digit pe

LeetCode 36. Valid Sudoku (effective Sudoku) solution ideas and methods

LeetCode 36. Valid Sudoku (effective Sudoku) solution ideas and methodsValid SudokuDetermine if a Sudoku is valid, according to: Sudoku Puzzles-The Rules.The Sudoku board cocould be partially filled, where empty cells are filled with the character '.'.A partially filled

HDU 1426 Sudoku Killer (sudoku, dividing area is key)

Sudoku KillerTime limit:2000/1000 MS (java/others) Memory limit:65536/32768 K (java/others)Total submission (s): 6283 Accepted Submission (s): 1981Problem description Since the first Sudoku World Championship from March 10, 2006 to 11th, Sudoku has become increasingly popular and valued.It is said that at the 2008 Beijing Olympic Games, the

Leetcode 36.Valid Sudoku (effective Sudoku) thinking and method of solving problems

Valid SudokuDetermine if a Sudoku is valid, according To:sudoku puzzles-the Rules.The Sudoku board could be partially filled, where empty cells is filled with the character '.A partially filled sudoku which is valid.Note:A Valid Sudoku board (partially filled) is not necessarily solvable. Only the filled cells need to

iOS7 Nine Sudoku can not set iOS7 nine Sudoku Input method how to set up?

Introduced Apple in the IOS7 BETA4 version has begun to improve the input method, and added nine Sudoku keyboard. This let the whole of the iOS full keyboard devastated Chinese are ecstatic, the author of several fruit powder friends are also feeling "finally do not escape!" "Then IOS7 official version of the nine Sudoku Input method exactly how to set it?" Advantages The iphone's screen is small, the ke

[Lettcode]49. Valid Sudoku Effective Sudoku

Determine if a Sudoku is valid, according To:sudoku puzzles-the Rules.The Sudoku board could be partially filled, where empty cells is filled with the character ‘.‘ .A partially filled sudoku which is valid.Note:A Valid Sudoku board (partially filled) is not necessarily solvable. Only the filled cells need to be valida

Klsudoku traditional Sudoku game software user manual version 1.1

Handbook Klsudoku traditional Sudoku game software user manual version 1.1Statement This manual can be obtained from the project wiki address to the latest version: http://code.google.com/p/klsudoku/wiki/HandBook Authorization statement: without the authorization of ttylikl, all sections of this manual shall not be reproduced by any media or commercial organization. An individual can repost all or part of the chapters to the personal network media (su

The first of the design and realization of Sudoku Game--Understanding the Sudoku process

Sudoku is a logic game that uses paper and pens to make calculations. Players need to infer the number of all remaining spaces according to the known numbers on the 9x9 disk, and the numbers in each row, each column, and in each of the rough lines are 1-9 and do not repeat . To exclude the law, the Sudoku plate is a nine, each house is divided into nine small lattice. In these 81 lattice given a certain num

Nyoj-722-Sudoku &&hdoj-1426-sudoku Killer

hdoj on the topic: Problem Description since the first Sudoku World championships from March 10, 2006 to 11th, Sudoku has become more and more popular with people. It is said that in the 2008 Beijing Olympic Games, the Sudoku will be listed as a separate project to compete, the champion will have the possibility to obtain a huge prize ——— HDU free 7th Tour plus

Sudoku Sudoku Game

#include    Describe Problem Description: Sudoku (Sudoku) is a popular digital logic game. The player needs to calculate the number of all remaining spaces according to the known numbers on the 9x9 disk, and the numbers in each row, each column, and in each of the rough lines are 1-9 and do not repeat.Input:An array of 9x9 disks that contain known numbers [vacant bits are represented by

Valid Sudoku, whether it is a valid Sudoku

Problem Description: Given the 9x9 matrix, see whether it is a valid Sudoku, not all are filled with numbers, can be.Algorithm analysis: This problem is judged, not difficult, effective Sudoku three sufficient conditions, rows, columns, 3*3 sub-matrix, all to meet the number can not be repeated.1 Public BooleanIsvalidsudoku (Char[] board)2 {3 if(board = =NULL|| Board.length! = 9 | | Board[0].le

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