public/subjects/listlast.fr.md

listpushback

Instructions

Write a function ListLast that returns the last element of the linked list.

Expected function and structure

type Node struct {
	Data interface{}
	Next *Node
}

type List struct {
	Head *Node
	Tail *Node
}

func ListLast(l *List) interface{} {
}

Usage

Here is a possible program to test your function :

package main

import (
	"fmt"

	piscine ".."
)

func main() {
	link := &piscine.List{}
	link2 := &piscine.List{}

	piscine.ListPushBack(link, "three")
	piscine.ListPushBack(link, 3)
	piscine.ListPushBack(link, "1")

	fmt.Println(piscine.ListLast(link))
	fmt.Println(piscine.ListLast(link2))
}

And its output :

student@ubuntu:~/piscine/test$ go build
student@ubuntu:~/piscine/test$ ./test
1
<nil>
student@ubuntu:~/piscine/test$