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搞了4个多小时啊~~~~搞了4个多小时啊~~~~ dfs要从不同方向，太烦，后来直接bfs，枚举距离，就是先将有值的点加入队列，然后开始广搜，这里要注意，只需要保存一个初始值，不用全部都保存下来，因为只要有两个距离一样的初始值，他就是0。就这里，搞了半天~~~~~ T^T Followed by: Post your reply here: |
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