Golang Program to count the number of nodes in a linked list.


Approach to solve this problem

Step 1 − Define a method that accepts the head of the linked list.

Step 2 − Initialize a variable, count := 0.

Step 3 − Iterate the given linked list till it reaches the last node.

Step 4 − Increase the count by 1 in the loop.

Step 5 − Return count.


 Live Demo

package main
import "fmt"
type Node struct {
   value int
   next *Node
func NewNode(value int, next *Node) *Node{
   var n Node
   n.value = value
   n.next = next
   return &n
func CountNodes(head *Node){
   fmt.Printf("Input Linked List is: ")
   count :=0
   temp := head
   for temp != nil {
      fmt.Printf("%d ", temp.value)
      temp = temp.next
      count += 1
   fmt.Printf("\nNumber of nodes in the linked list is: %d\n", count)
func main(){
   head := NewNode(30, NewNode(10, NewNode(40, NewNode(40, nil))))


Input Linked List is: 30 10 40 40
Number of nodes in the linked list is: 4

Updated on: 18-Mar-2021

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