public class 迷宫回溯 {
public static void main(String[] args) {
int[][] map = new int[8][7];
for (int i = 0; i < 7; i++) {
map[0][i] = 1;
map[7][i] = 1;
}
for (int i = 0; i < 8; i++) {
map[i][0] = 1;
map[i][6] = 1;
}
map[3][1] = 1;
map[3][2] = 1;
for (int i = 0; i < 8; i++) {
for (int j = 0; j < 7; j++) {
System.out.print(map[i][j] + " ");
}
System.out.println();
}
setWay(map,1,1);
System.out.println("==============");
for (int i = 0; i < 8; i++) {
for (int j = 0; j < 7; j++) {
System.out.print(map[i][j] + " ");
}
System.out.println();
}
}
public static boolean setWay(int[][] map,int i,int j) {
if (map[6][5] == 2) {
return true;
}
if (map[i][j] == 0) {
map[i][j] = 2;
if (setWay(map,i+1,j)) {
return true;
} else if (setWay(map,i,j+1)) {
return true;
} else if (setWay(map,i-1,j)) {
return true;
} else if (setWay(map,i,j-1)) {
return true;
} else {
map[i][j] = 3;
return false;
}
} else {
return false;
}
}
}
如何找最短路径:遍历不同的策略得到的结果,计算出最短路径。
|