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怎么感觉这个题目是在沿这四周的城市打圈圈？------------ |11|21|31|41| ------------ |12|22|32|42| ------------- |13|23|33|43| ------------- |14|24|34|44| ------------- 按照直走，左转规则。 最后所有的group都跑到四周，一格一格地走了。 难道是题目理解错了？ Followed by: Post your reply here: |
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