import java.util.LinkedList; import java.util.Queue; import java.util.Scanner; // 注意类名必须为 Main, 不要有任何 package xxx 信息 public class Main { private static int[] dX = new int[]{0, 0, 1, -1}; private static int[] dY = new int[]{1, -1, 0, 0}; private static int row; private static int column; private stat...