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## btreeprintroot
6 years ago
### Instructions
Write a function to print the value of the root node of a binary tree.
The nodes must be defined as follows:
6 years ago
### Expected function
```go
type TreeNode struct {
left, right *TreeNode
data string
}
func PrintRoot(root *TreeNode){
}
```
6 years ago
### Usage
Here is a possible program to test your function :
```go
package main
func main() {
// rootNode initialized with the value "who"
// rootNode1 initialized with the value "are"
// rootNode2 initialized with the value "you"
printRoot(rootNode)
printRoot(rootNode1)
printRoot(rootNode2)
}
```
And its output :
```console
student@ubuntu:~/[[ROOT]]/printroot$ go build
student@ubuntu:~/[[ROOT]]/printroot$ ./printroot
who
are
you
student@ubuntu:~/[[ROOT]]/test$
```