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## listpushback
### Instructions
Write a function `ListSort` that sorts the linked list by ascending order.
- This time you only will have the `Nodee` structure.
- Try to use recursive.
- Use pointers when ever you can.
### Expected function and structure
```go
type Nodee struct {
Data int
Next *Nodee
}
func ListSort(l *NodeL) *NodeL {
}
```
### Usage
Here is a possible [program](TODO-LINK) to test your function :
```go
package main
import (
"fmt"
student ".."
)
//Prints the list
func PrintList(l *Nodee) {
m := l
for m != nil {
fmt.Print(m.Data, " -> ")
m = m.next
}
fmt.Print(nil)
fmt.Println()
}
//insert elements
func listPushBack(l *Nodee, Data int) {
n := &Nodee{}
n.Data = Data
n.next = nil
if l == nil {
l = n
return
}
iterator := l
for iterator.next != nil {
iterator = iterator.next
}
iterator.next = n
}
func main() {
link := &Nodee{}
listPushBack(link, 5)
listPushBack(link, 4)
listPushBack(link, 3)
listPushBack(link, 2)
listPushBack(link, 1)
PrintList(student.ListSort(link))
}
```
And its output :
```console
student@ubuntu:~/student/test$ go build
student@ubuntu:~/student/test$ ./test
0 -> 1 -> 2 -> 3 -> 4 -> 5 -> <nil>
student@ubuntu:~/student/test$
```