解释一下这段代码内循环运行几次以及是怎么运行的。

Question

for (int i = 0; i < 3; i++){

     for (int j = 0; j <3; j++){

     

      int k = 0;

      int[] list = new int[9];

      for (int row = i*3; row < i * 3 + 3; row ++)

        for(int column = j * 3; column < j * 3 + 3; column++)

           list[k++] = grid[row][column];

      

       if (!is1To9(list))

         return false;

      }

    }

  

    return true;

Answer 1

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