package main

import (
	"fmt"
)

func main() {
	root := &TreeNode{Data: "4"}
	BTreeInsertData(root, "1")
	BTreeInsertData(root, "7")
	BTreeInsertData(root, "5")
	node := BTreeSearchItem(root, "4")
	fmt.Println("Before delete:")
	BTreeApplyInorder(root, fmt.Println)
	root = BTreeDeleteNode(root, node)
	fmt.Println("After delete:")
	BTreeApplyInorder(root, fmt.Println)
}