public/subjects/btreeprintroot.en.md

printroot

Instructions

Write a function to print the value of the root node of a binary tree. You have to create a new number and print the value of data The nodes must be defined as follows:

Expected function

type TreeNode struct {
	left, right *TreeNode
	data        string
}

func PrintRoot(root *TreeNode){

}

Usage

Here is a possible program to test your function :

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 :

student@ubuntu:~/piscine/printroot$ go build
student@ubuntu:~/piscine/printroot$ ./printroot
who
are
you
student@ubuntu:~/piscine/test$