Create more duplicates and decorate them along the border of the rectangle. Select and merge all the star layers.

多复制一些小星星放置在矩形周围，并将这些小行星合并为一个图层。

youdao

The given maze doesn't contain border (like the red rectangle in the example pictures), but you should assume the border of the maze are all walls.

给定的迷宫不包含边界，但迷宫四周都是墙壁。

youdao

The given maze doesn't contain border (like the red rectangle in the example pictures), but you should assume the border of the maze are all walls.

给定的迷宫不包含边界，但迷宫四周都是墙壁。

youdao