彩神大发快三_神彩大发快三官方

[LeetCode] Serialize and Deserialize Binary Tree

时间:2020-01-04 11:27:25 出处:彩神大发快三_神彩大发快三官方

I adopt a way similar to that of the OJ to serialize the binary tree. For the following tree, my serialization result is "1,2,3,null,null,4,5," (note the last comma).

The serialization and deserialization both use the BFS traversal. The code is as follows.

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