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subject fix

content-update
lee 4 years ago
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  1. 20
      subjects/inverttree.en.md

20
subjects/inverttree.en.md

@ -11,18 +11,27 @@ This means that:
- The function main declared needs to **also pass** the `Restrictions Checker`(illegal functions tester). It is advised for the student to just empty the function main after its own testings are done. - The function main declared needs to **also pass** the `Restrictions Checker`(illegal functions tester). It is advised for the student to just empty the function main after its own testings are done.
- Every other rules are obviously the same than for a `program`. - Every other rules are obviously the same than for a `program`.
### Instructions
### Instructions:
Write a function that takes tree and inverts(flips) and returns it. Write a function that takes tree and inverts(flips) and returns it.
```
### Expected function and structure
```go
type TNode struct { type TNode struct {
Val int Val int
Left *TNode Left *TNode
Right *TNode Right *TNode
} }
func InvertTree(root *TNode) *TNode {
}
``` ```
Example: Example:
```
```shell
Input: Input:
7 7
/ \ / \
@ -37,8 +46,3 @@ Output:
/ \ / \ / \ / \
13 9 6 3 13 9 6 3
``` ```
Expected function:
```
func InvertTree(root *TNode) *TNode {
}
```

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