深度优先搜索的部分是,每次填入一个数,只有当这个数是有效且也不会造成数独未来无效的时候,才会继续递归填入下一个数。而回溯的部分是,当填入的数是违反数独规则的,或者在将来使得数独无效,那么就要把填入的数回溯到初始状态。想明白这一点就非常好做了。 Java classSolution {publicvoidsolveSudoku(char[][] board...
就是一点点尝试着填数,不行的话就回溯,直到都填满就返回。 如果对一个格子尝试从0~9都不行,那么说明整个sudoku无解,返回false就好。 对整个棋盘所有'.'都填完了,那么就可以返回true了。 1publicvoidsolveSudoku(char[][] board) { 2if(board==null||board.length==0) 3return; 4helper(board); 5} 6...
publicclassSudokuSolver{staticbooleansolution(finalchar[][]shudu){finalMap<Integer,Set<Integer>>rowMap=newHashMap<Integer,Set<Integer>>();finalMap<Integer,Set<Integer>>columnMap=newHashMap<Integer,Set<Integer>>();for(inti=0;i<9;i++){for(intj=0;j<9;j++){if(shudu[i][j]=='.'){cont...
当发现所有空位都填充满了之后,就可以返回true了。 javapublic class Solution { public void solveSudoku(char[][] board) { if (board == null || board.length != 9 || board[0].length != 9) return; solve(board, 0, 0); } private boolean solve(char[][] board, int i, int j) { if...
LeetCode刷题实战37: 解数独 javapython数据结构 算法的重要性,我就不多说了吧,想去大厂,就必须要经过基础知识和业务逻辑面试+算法面试。所以,为了提高大家的算法能力,这个公众号后续每天带大家做一道算法题,题目就从LeetCode上面选 ! 程序员小猿 2021/01/16 4270 宇智波程序笔记8- 解数独(Sudoku Solver) ...
所以,为了提高大家的算法能力,这个公众号后续每天带大家做一道算法题,题目就从LeetCode上面选 ! 程序员小猿 2021/01/20 3800 DFS&BFS - 37. Sudoku Solver bashbash 指令 Write a program to solve a Sudoku puzzle by filling the empty cells. ppxai 2020/09/23 2550 37. Sudoku Solver java tags: ...
107 changes: 107 additions & 0 deletions 107 backtracking_question_ac/sudokuSolver.java Original file line numberDiff line numberDiff line change @@ -0,0 +1,107 @@ public class sudokuSolver { static boolean solve(int[][] board) { int n = board.length; int row = -1; int col = -...
Code ...13 SudokuEvolutionMain.java ...13 SudokuPopulation.java ...
a repository for programs that solve various games including word games, puzzle games, etc. - Game_busters/SudokuSolver.java at main · aniakula/Game_busters
Sudoku is a logic-based combinatorial number-placement puzzle. This post is about writing a Java Program for sudoku solver using recursive backtracking.