[LeetCode] 505. The Maze II 迷宮 II
There is a ball in a maze with empty spaces and walls. The ball can go through empty spaces by rolling up, down, left or right, but it won't stop ...
原文：[LeetCode] 505. The Maze II 迷宮之二
There is aballin a maze with empty spaces and walls. The ball can go through empty spaces by rollingup,down,leftorright, but it won t stop rolling until hitting a wall. When the ball stops, it could ...
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