|
|
|
## btreesearchitem
|
|
|
|
|
|
|
|
### Instructions
|
|
|
|
|
|
|
|
Écrire une fonction qui cherche une node avec un élément de data égal à `elem` et qui retourne cette node.
|
|
|
|
|
|
|
|
### Fonction attendue
|
|
|
|
|
|
|
|
```go
|
|
|
|
func BTreeSearchItem(root *TreeNode, elem string) *TreeNode {
|
|
|
|
|
|
|
|
}
|
|
|
|
```
|
|
|
|
|
|
|
|
### Utilisation
|
|
|
|
|
|
|
|
Voici un éventuel [programme](TODO-LINK) pour tester votre fonction :
|
|
|
|
|
|
|
|
```go
|
|
|
|
package main
|
|
|
|
|
|
|
|
import (
|
|
|
|
"fmt"
|
|
|
|
piscine ".."
|
|
|
|
)
|
|
|
|
|
|
|
|
func main() {
|
|
|
|
root := &piscine.TreeNode{Data: "4"}
|
|
|
|
piscine.BTreeInsertData(root, "1")
|
|
|
|
piscine.BTreeInsertData(root, "7")
|
|
|
|
piscine.BTreeInsertData(root, "5")
|
|
|
|
selected := piscine.BTreeSearchItem(root, "7")
|
|
|
|
fmt.Print("Item selected -> ")
|
|
|
|
if selected != nil {
|
|
|
|
fmt.Println(selected.Data)
|
|
|
|
} else {
|
|
|
|
fmt.Println("nil")
|
|
|
|
}
|
|
|
|
|
|
|
|
fmt.Print("Parent of selected item -> ")
|
|
|
|
if selected.Parent != nil {
|
|
|
|
fmt.Println(selected.Parent.Data)
|
|
|
|
} else {
|
|
|
|
fmt.Println("nil")
|
|
|
|
}
|
|
|
|
|
|
|
|
fmt.Print("Left child of selected item -> ")
|
|
|
|
if selected.Left != nil {
|
|
|
|
fmt.Println(selected.Left.Data)
|
|
|
|
} else {
|
|
|
|
fmt.Println("nil")
|
|
|
|
}
|
|
|
|
|
|
|
|
fmt.Print("Right child of selected item -> ")
|
|
|
|
if selected.Right != nil {
|
|
|
|
fmt.Println(selected.Right.Data)
|
|
|
|
} else {
|
|
|
|
fmt.Println("nil")
|
|
|
|
}
|
|
|
|
}
|
|
|
|
```
|
|
|
|
|
|
|
|
Et son résultat :
|
|
|
|
|
|
|
|
```console
|
|
|
|
student@ubuntu:~/piscine-go/test$ go build
|
|
|
|
student@ubuntu:~/piscine-go/test$ ./test
|
|
|
|
Item selected -> 7
|
|
|
|
Parent of selected item -> 4
|
|
|
|
Left child of selected item -> 5
|
|
|
|
Right child of selected item -> nil
|
|
|
|
student@ubuntu:~/piscine-go/test$
|
|
|
|
```
|