Java Sudoku Solution Verifier

Question

我目前正在尝试创建一个Java程序，将81个整数（1-9）读入9×9矩阵，然后测试该矩阵是否是Sudoku难题的解决方案。 Sudoku解决方案的参数如下：每个数字（1-9）必须在每个行，列和3x3方格中表示，而不会在这些区域中重复。我已经编写了一个方法来验证所有行和列是否满足参数，但是，我正在努力想出一个算法来验证方块。以下是我到目前为止的情况：

import java.util.*;
public class SudokuCheck
{
  public static boolean sudokuCheck(int[][] s)
  {
    for(int row=0;row<9;row++)
      for(int col=0;col<8;col++)
      if(s[row][col]==s[row][col+1]){
      return false;}
     //Verifies rows

    for(int col2=0;col2<9;col2++)
      for(int row2=0;row2<8;row2++)
      if (s[row2][col2]==s[row2+1][col2])
      return false;
    //verifies columns

    return true;    
  }


  public static void main (String[] args)
  {
    Scanner input = new Scanner(System.in);

    int[][] solution = new int [9][9];
    System.out.println("Enter the values of a 9 X 9 Sudoku solution");

    for(int i=0;i<9;i++)
      for(int j=0;j<9;j++)
      solution[i][j]=input.nextInt();
    //read values into matrix


    if(sudokuCheck(solution)==true)
      System.out.println("The entered 9 X 9 grid is a solution to a Sudoku puzzle.");
else
  System.out.println("The entered 9 X 9 grid is not a solution to a Sudoku puzzle.");
  }
}

Answer 1

这可以根据您的方法进行优化

myDate.ToString("yyyy-MM-dd HH':'mm':'ss")

Answer 2

我希望它可以帮到你

public static void main(String[] args) throws Exception {
    int[][] f = {{4,2,9,8,1,3,5,6,7}, {5,1,6,4,7,2,9,3,8}, {7,8,3,6,5,9,2,4,1},
                 {6,7,2,1,3,4,8,5,9}, {3,9,5,2,8,6,1,7,4}, {8,4,1,7,9,5,6,2,3}, 
                 {1,5,8,3,6,7,4,9,2}, {9,3,4,5,2,8,7,1,6}, {2,6,7,9,4,1,3,8,5}};
    System.out.println(Arrays.toString(f));
    System.out.println(checkBlock(f, 2, 2));
}

public static boolean checkBlock(int[][] f, int z, int s) throws Exception {
    boolean[] mark = new boolean[9];
    boolean res = true;
    for (int i = 0; i < 3; ++i) {
        for (int j = 0; j < 3; ++j) {
            int v = f[z * 3 + i][s * 3 + j];
            if (v == 0) {
                res = false;
            }
            if (mark[v - 1]) {
                throw new Exception();
            }
            mark[v - 1] = true;
        }
    }
    return res;
}

Answer 3

docker-compose.yml