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1001 B

btreedeletenode

Instructions

Write a function, BTreeDeleteNode, that deletes node from the tree given by root.

The resulting tree should still follow the binary search tree rules.

Expected function

func BTreeDeleteNode(root, node *TreeNode) *TreeNode {

}

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")
	node := piscine.BTreeSearchItem(root, "4")
	fmt.Println("Before delete:")
	piscine.BTreeApplyInorder(root, fmt.Println)
	root = piscine.BTreeDeleteNode(root, node)
	fmt.Println("After delete:")
	piscine.BTreeApplyInorder(root, fmt.Println)
}

And its output :

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