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Golang program to insert a node at the ith index node, when the index is at the nth index, i.e., out of bound in the linked list.
Examples
Example
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 InsertNodeAtIthIndex(head *Node, index, data int) *Node{
if head == nil{
head = NewNode(data, nil)
return head
}
if index == 0{
newNode := NewNode(data, nil)
newNode.next = head
head = newNode
return head
}
i := 0
temp := head
preNode := temp
for temp != nil {
if i == index{
newNode := NewNode(data, nil)
preNode.next = newNode
newNode.next = temp
break
}
i++
preNode = temp
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)
index := 30
head = InsertNodeAtIthIndex(head, index, 15)
fmt.Printf("Inserting new node at %dth index, Linked List is: ", index)
TraverseLinkedList(head)
}Output
Input Linked list is: 30 10 40 40 Inserting new node at 30th index, Linked List is: 30 10 40 40
Updated on: 18-Mar-2021
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