Go 语言程序在 i-th 索引节点处插入节点,其中索引位于链表的最后一个位置。
示例
示例
解决此问题的方法
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 := 3 head = InsertNodeAtIthIndex(head, index, 35) fmt.Printf("Inserting new node at %dth index, Linked List is: ", index) TraverseLinkedList(head) }
输出
Input Linked list is: 30 10 40 40 Inserting new node at 3th index, Linked List is: 30 10 40 35 40
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