sudoku solver 9x9

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[PowerShell] calculates 9x9 Sudoku with PowerShell.

This arctical'll also is published in 中文版 at http://www.cnblogs.com/LarryAtCNBlog/p/4307965.htmlSudoku is a crossword puzzle, widely known is the 9x9 type, the following is an algorithm, that is, each time from the number of can be determined to calculate the possible values of the peer or the same column, if the possible value is only 1, then you can directly determine the value of the cell, if the number of possible values is greater than or equal t

[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

[Powershell] An algorithm to 9x9 Sudoku.

Sudoku is a numbers filling game, most known by people are 9x9 class, the algorithm is using confirmed numbers-get all P Ossible numbers for each cell, if the number if possible numbers for a cell was 1, then the cell value confirmed, if Greate R or equal than 2, script makes loop and calculates a potential answer. Since answers is isn't unique, so a parameter was added to specify what many answers to retur

[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

[Leetcode] Sudoku Solver Solving Sudoku

numbers are legal, which can make the program more efficient, as shown in the code:classSolution { Public: voidSolvesudoku (vectorChar> > Board) { if(Board.empty () | | board.size ()! =9|| board[0].size ()! =9)return; Solvesudokudfs (board,0,0); } BOOLSolvesudokudfs (vectorChar> > board,intIintj) {if(i = =9)return true; if(J >=9)returnSolvesudokudfs (board, i +1,0); if(Board[i][j] = ='.') { for(intK =1; K 9; ++k) {Board[i][j]= (Char) (k +'0'); if(isValid (board, I, J))

[Leetcode] Sudoku Solver @ Python

Original title address: https://oj.leetcode.com/problems/sudoku-solver/Test instructionsWrite 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 implementation method of C + + for programming beauty Sudoku Solver

Programming the beauty of the first chapter of the 15th section, talking about the construction of Sudoku, a start to get this problem really no idea, but read the book in the introduction, found that the original solution of the idea and the N queen problem is consistent, but do not know why, anyway, at first did not think of this backtracking method, know that is solved by backtracking, The problem becomes much easier.Here we do not intend to implem

Leetcode Notoginseng Sudoku Solver (C,c++,java,python)

Solvesudoku (vectorPython source code (636MS):Class Solution: # @param {character[][]} board # @return {void} do not return anything, modify board In-place Instea D. def solvesudoku (self, Board): self. SudoKu (board,0,0) def SudoKu (self,board,i,j): If I==8 and J==9:return True if j==9:i+=1;j=0 if boa Rd[i][j]!= '. ': if self. SudoKu (board,i,j+1

LeetCode: Sudoku Solver, leetcodesudoku

LeetCode: Sudoku Solver, leetcodesudoku Sudoku Solver Total Accepted: 13937 Total Submissions: 66832My Submissions 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

Leetcode Sudoku Solver

{ - return true; - } theBoard[i][j]= '. '; - } - return false; - } + } - } + return true; A } at Private BooleanIsvalidsudoku (Char[] board,intRowintColum) { - for(intj=0;j) - if(J! = Colum Board[row][j] = =Board[row][colum]) - return false; - -

[Leetcode] [Java] Sudoku Solver

Title: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.Test Instructions:Write a program to solve Sudoku problems by filling in whitespace.These spaces are characters‘.‘填充。You can as

[Leetcode] Sudoku Solver

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. The sudoku solver was finally reached. With the basis of valid

Panax Sudoku Solver

/** 37. Sudoku Solver * 2015.12.13 by Mingyang * 1. Length standard: None * 2. Optional range: All the wood is worth the point, pick a number from 1 to 9 * 3. Take a step forward: if put in is validate, then Put * 4. Take a step back: if you put it in and the back is false, change the point back to * 5. Special case: No * 6. On repetition: none * The IsValid of this topic is difficult * row = I/3 * 3; Row *

Leetcode DFS Sudoku Solver

Sudoku Solver Total accepted:11799 Total submissions:56732 My submissions 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

Leetcode---37. Sudoku Solver

complexity: O (n2)1 class Solution2 {3 int used1[9][9], Used2[9][9], used3[9][9];4 5 Public:6 void Solvesudoku(VectorVectorChar> > Board)7 {8 VectorVectorint>> Place;9 for(int I = 0; I Board.size(); ++ I)Ten for(int J = 0; J Board[I].size(); ++ J) One { A if(Board[I][J] == '. ') - Place.push_back({I, J}); - Else the { - int Num = Board[I][J] - '

Panax Sudoku Solver (Graph; WFS)

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.classSolution { Public: voidSolvesudoku (vectorChar>> Board) {Backtracking (board,0); } BOOLBacktracking (vectorChar>> board,intLine ) { //Find first empty cell

037. Sudoku Solver

1 classSolution {2 Public:3 voidSolvesudoku (vectorChar>>Board) {4 Sudoku (board);5 }6 Private:7 BOOLSudoku (vectorChar>>Board)8 {9 for(inti =0; I 9; ++i) {Ten for(intj =0; J 9; ++j) { One if(Board[i][j] = ='.') { A for(intK =0; K 9; ++k) { -BOARD[I][J] ='1'+K; - if(IsValid (board, I, J) Sudoku (board))retur

Leetcode Oj:sudoku Solver (sudoku game)

for(intCol =0; Col 9; ++Col) { + if(Board[row][col] = ='.'){ - for(inti =1; I 9; ++i) { theBoard[row][col] ='0'+i; * if(checkvalid (board, Row, col)) { $ if(Dosudoku (board)) {Panax Notoginseng return true; - } the } +Board[row][col] ='.'; A } the return false; +

[Leetcode] Sudoku Solver

+'1'; if(IsValid (board,i,j)) DFS (board); if(!flag)//If no workable solution is found, the restorationBOARD[I][J] ='.'; Else //have found a workable solution, return directly, not continue the next cycle return; } if(k==9)//Maintenance If the fill 1-9 is not satisfied, the previous results have a problem return; } if(i==8 j==8)//found a workable solution.Flag =true; } } voidSolvesudoku (vect

[Leetcode] Sudoku Solver

; + } - } + } A return true; at } - - Private BooleanIsValid (Char[] board,intRowintCol) { - //TODO auto-generated Method Stub - for(inti=0;ii) { - if(i!=rowboard[i][col]==Board[row][col]) in return false; - } to for(inti=0;ii) { + if(i!=colboard[row][i]==Board[row][col]) - return false; the } * for(intI= (ROW/3) *3;ii) { $ f

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