Unverified Commit 3b509cda authored by 雷蒻's avatar 雷蒻 Committed by GitHub
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Update ett.md

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大家对这括号序很熟悉吧,如:

![](https://miao.su/images/2019/08/13/399d05244ad7780bb46f1.png)
![](./images/ett1.png)

其括号序为: `1 2 5 5 6 6 2 3 3 4 7 8 8 7 4 1`

@@ -10,7 +10,7 @@

然后我们看一下,如果把 `4` 的子树移给 `3` 会怎样?如图:

![](https://miao.su/images/2019/08/13/68de97b32ce07c3440ebb.png)
![](./images/ett2.png)

原图括号序: `1 2 5 5 6 6 2 3 3 4 7 8 8 7 4 1`