sudoku y wing

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[Leetcode] [Python]37:sudoku Solver

#-*-Coding:utf8-*-‘‘‘__author__ = ' [email protected] '37:sudoku Solverhttps://oj.leetcode.com/problems/sudoku-solver/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.===comments by dabay===Progressive scan, when encountering "." , try every possi

[Leetcode] 036. Valid Sudoku (Easy) (C + +)

Index: [Leetcode] leetcode key index (C++/JAVA/PYTHON/SQL)Github:https://github.com/illuz/leetcode036. Valid Sudoku (Easy)links:Title: https://leetcode.com/problems/valid-sudoku/Code (GitHub): Https://github.com/illuz/leetcodeTest Instructions:Determine if a Sudoku is valid.Effective Sudoku is not forced to have a solu

--Sudoku __dfs

You must have heard of the Sudoku game. such as "Figure 1.png", the player needs to be based on the known number on the 9x9 disk, to infer all the remaining space figures, and meet each row, each column, each of the same color nine within the number contains 1-9, do not repeat. The answer to Sudoku is unique, so many solutions are also called no solutions. The figures in this figure are said to be the d

The simplest Sudoku solution for Go language implementation _golang

Soduku.go Copy Code code as follows: Package Main Import ( "FMT" ) Type node []int var Sudokumay [9][9]node var Sudoku = [9][9]int{ {0, 0, 0, 0, 0, 0, 8, 0, 0}, {0, 8, 2, 4, 0, 0, 0, 0, 0}, {1, 9, 0, 0, 6, 3, 0, 0, 0}, {0, 5, 0, 0, 8, 0, 7, 0, 0}, {6, 7, 8, 2, 0, 9, 1, 4, 3}, {0, 0, 3, 0, 4, 0, 0, 8, 0}, {0, 0, 0, 6, 2, 0, 0, 9, 4}, {0, 0, 0, 0, 0, 5, 6, 1, 0}, {0, 0, 0, 6, 0, 0, 0, 0, 0}} Func Main () { N: = inited (

Sudoku Game __ Backtracking method

Sudoku Games Topic Nine Sudoku are in 81 lattices (9x9), the following conditions are met: (1) Each of the 9 lattices in the horizontal and vertical columns contains the digital 1~9 and does not repeat; (2) The 9 squares (3x3) enclosed by each black thick solid line contain digital 1~9 and are not duplicated. As shown in the figure: Requirement: Find the nine Sudoku

Preparation Waterloo Cup (22) filling Sudoku

Package pers.robert.lanqiaobei05; Import Java.util.Scanner; Import Org.omg.CORBA.DATA_CONVERSION; /** * You must have heard of the Sudoku game. such as "Figure 1.png", the player needs to be based on the known number on the 9x9 disk, to infer all the remaining space figures, and meet each row, each column, each of the same color nine within the number contains 1-9, do not repeat. The answer to Sudoku

Waterloo Cup Sudoku

problem You must have heard of the Sudoku game.The player needs to infer all the remaining space figures according to the known numbers on the 9x9 disk, and satisfy each row, each column, each nine within the same color contains 1-9, do not repeat. The answer to Sudoku is unique, so many solutions are also called no solutions. The figures in this figure are said to be the difficult subjects that the Finnis

Open-source Sudoku game software klsudoku released the first release version

Project address: http://code.google.com/p/klsudoku Installer download connection: http://klsudoku.googlecode.com/files/KLSudoku_v1.0_Release (090221).rar SVN source code path: https://klsudoku.googlecode.com/svn/trunk/csharp SVN revision: 102 Changelogs2009.2.21 Add the following logical solution X-chain Forcing-chain Swordfish? Jellyfish? Implement the following logic: Naked pair Naked triple Naked quad X-wing

[Leetcode] (python): 037-sudoku Solver

Source of the topic:https://leetcode.com/problems/sudoku-solver/ Test Instructions Analysis:This topic is the evolutionary version of the previous question. Fill out a Sudoku. Topic Ideas:This problem is solved directly with DFS violence. Please fill in the "*" with (1-9) directly. The complexity of time is relatively high. Note that the title requires no return value, so write a separate functi

HDU 4069 (dancing links Sudoku)

Squigugly Sudoku Time Limit: 4000/2000 MS (Java/others) memory limit: 65536/32768 K (Java/Others)Total submission (s): 81 accepted submission (s): 18Problem descriptiontoday we play a squigugly Sudoku, the objective is to fill a 9*9 grid with digits so that each column, each row, and each of the nine connecting-Sub-grids that Compose the grid contains all of the digits from 1 to 9. Left figure is the puzzle

Zoj 3122 (precise coverage of sudoku dancing links)

Sudoku Time Limit: 10 seconds memory limit: 32768 KB A Sudoku grid is a 16x16 grid of cells grouped in sixteen 4x4 squares, where some cells are filled with letters fromAToP(The first 16 capital letters of the English alphabet), as shown in Figure 1a. The game is to fillAll the empty grid cells with letters fromAToPSuch that each letter from the grid occurs once only in the line, the column, and th

[Leetcode] Sudoku solver (iteration)

Write a program to solve a Sudoku puzzle by filling the empty cells. Empty cells are indicated by the character‘.‘. You may assume that there will be only one unique solution. A Sudoku puzzle... ... And its solution numbers marked in red. Method: the key to solving this problem is to try it one by one in the alternative set. Not every space can start with a unique fixed number. class Solution {public:

What is a Sudoku business card?

Yesterday, I saw a female laser searching for male gods on the Internet. The puzzle is a digital card. If you are interested, try to crack it. I heard that it was Bai fumei (Weibo is @ Mu huakai 1990) who met a man while traveling in Guilin. The man left such a digital card and left. Both of them work in Shenzhen. Bai fumei fell in love with the man at first sight, but he did not know how to crack the digital card. Go back to Shenzhen and ask for help at Diwang Tower on June 15th to crack this

Leetcode 36 Sudoku Solver

Label: Java leetcode Write a program to solve a Sudoku puzzle by filling the empty cells. Empty cells are indicated by the character'.'. You may assume that there will be only one unique solution. A Sudoku puzzle... ... And its solution numbers marked in red. Idea 1: use violent DFS public class Solution {private boolean isValidSudoku(char[][] board, int row, int column) {int i, j;int[] va

Leetcode 36th -- Sudoku Solver

Label: style blog HTTP color Io AR for SP Div Question: Write a program to solve a Sudoku puzzle by filling the empty cells. Empty cells are indicated by the character'.'. You may assume that there will be only one unique solution. A Sudoku puzzle... ... And its solution numbers marked in red. This question is more difficult than determining whether the question value is valid. Ther

[Pku2676 + pku3074 + pku3076] Sudoku-dancing links

? Taking 9 Sudoku as an example, in theory, each grid can be filled with 1 ~ 9. If we enter K in column J of row I to correspond to the row in exact overwrite, after column J of row I is filled with K, row I cannot enter k any more, and column J cannot enter k any more. column G [I, j] cannot enter k any more. In fact, the grid in column J of row I cannot be filled with another number. This can be thought of as having only one column in exact coverage

Sudoku MongoDB links Template

contain the first column are few and become sparse matrices, In this case, using r or c queries is a waste of time. Dancing Links uses a two-way Cyclic Cross-linked list to store the matrix. The size of the linked list decreases continuously during the search process, and r or c is not required for Traversing once. Two-way linked list deletion: L [R [x] = L [x]; R [L [x] = R [x]; The restoration of a two-way linked list is also simple: L [R [x] = x; R [L [x] = x; Knuth named the linked list tha

Experiment 5 Sudoku Game Interface Design

Lab Report Course Name Android Development and practice Date of experiment 2016.4.15 Name of the experimental project Sudoku Game Interface Design Location of the experiment S3002 Type of experiment -Verification Type √ design type-comprehensive type Hours The purpose and requirements of the experiment (the knowledge points which are involved in this

Experiment 5 Sudoku Game Interface Design

Lab Report Course Name Mobile Internet development based on Android platform Date of experiment 2016.4.8 Name of the experimental project Sudoku Game Interface Design Location of the experiment S30002 Type of experiment -Verification Type √ design type-comprehensive type Hours 2 The purpose and requirements of the experiment (the knowledge points which

Leetcode-sudoku Solver

Topic: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 ...Ideas:recursion, constant temptation. PackageSudoku; Public classSudokuSolver { Public voidSolvesudoku (Char[] board) {Solve (board); } Private BooleanSolveChar[] board) { intm =-1; intn =-1; for(i

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