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晕啦！wa了n次，才知道是为什么？犯了几个严重的错误，我认为S一定在最底层，E一定在最顶层，开始做的时候只搜了5个方向，后来才明白S，E可以出现在任意层，这样就要搜六个方向了！唉 ！太失败了！！ Followed by: Post your reply here: |
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