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Output the node of X in the binary tree
2022-02-02 20:43:55 【CSDN Q & A】
Output binary tree x Brother node of , No is null .c The problem of .
Refer to the answer 1：
Binary tree can be done by deep search or wide search .
Refer to the answer 2：
author[CSDN Q & A],Please bring the original link to reprint, thank you.
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