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773 B

btreeapplybylevel

Instructions

Write a function, BTreeApplyByLevel, that applies the function given by fn to each node of the tree given by root.

Expected function

func BTreeApplyByLevel(root *TreeNode, f func(...interface{}) (int, error))  {

}

Usage

Here is a possible program to test your function :

package main

import (
	"fmt"
	piscine ".."
)

func main() {
	root := &piscine.TreeNode{Data: "4"}
	piscine.BTreeInsertData(root, "1")
	piscine.BTreeInsertData(root, "7")
	piscine.BTreeInsertData(root, "5")
	piscine.BTreeApplyByLevel(root, fmt.Println)
}

And its output :

student@ubuntu:~/[[ROOT]]/test$ go build
student@ubuntu:~/[[ROOT]]/test$ ./test
4
1
7
5
student@ubuntu:~/[[ROOT]]/test$