Golang Program to delete the node after the Kth node (K is not in the linked list).

Examples

Delete node after 50(K is not in the linked list) value node.

Approach to solve this problem

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

Step 2 − If head == nil, return the head.

Step 3 − Iterate the given linked list.

Step 4 − If node value 50 is not found, return the head without deleting any node.

Example

 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 TraverseLinkedList(head *Node){
   temp := head
   for temp != nil {
      fmt.Printf("%d ", temp.value)
      temp = temp.next
   }
   fmt.Println()
}
func DeleteAfterKthNode(head *Node, k int) *Node{
   // Delete after Kth node(K is not in the linked list).
   if head == nil{
      return head
   }
   temp := head
   for temp != nil{
      if temp.value == k{
         temp.next = temp.next.next
      }
      temp = temp.next
   }
   return head
}
func main(){
   head := NewNode(30, NewNode(10, NewNode(40, NewNode(40, nil))))
   fmt.Printf("Input Linked list is: ")
   TraverseLinkedList(head)
   head = DeleteAfterKthNode(head, 50)
   fmt.Printf("Delete node after %dth value node, Linked List is: ", 50)
   TraverseLinkedList(head)
}

Output

Input Linked list is: 30 10 40 40
Delete node after 50th value node, Linked List is: 30 10 40 40