L3-016 二叉搜索树的结构

输入样例： 5 2 4 1 3 0 8 2 is the root 1 and 4 are siblings 3 and 0 are on the same level 2 is the parent of 4 3 is the left child of 4 1 is the right child of 2 4 and 0 are on the same level 100 is the ri

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