60 lines
1.1 KiB
Go
60 lines
1.1 KiB
Go
// File: list_node.go
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// Created Time: 2022-11-25
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// Author: Reanon (793584285@qq.com)
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package pkg
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import (
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"fmt"
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"strconv"
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"strings"
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)
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// ListNode Definition for a singly-linked list node
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type ListNode struct {
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Next *ListNode
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Val int
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}
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// NewListNode Generate a list node with an val
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func NewListNode(v int) *ListNode {
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return &ListNode{
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Next: nil,
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Val: v,
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}
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}
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// ArrayToLinkedList Generate a linked list with an array
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func ArrayToLinkedList(arr []int) *ListNode {
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// dummy header of linked list
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dummy := NewListNode(0)
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node := dummy
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for _, val := range arr {
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node.Next = NewListNode(val)
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node = node.Next
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}
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return dummy.Next
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}
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// GetListNode Get a list node with specific value from a linked list
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func GetListNode(node *ListNode, val int) *ListNode {
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for node != nil && node.Val != val {
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node = node.Next
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}
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return node
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}
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// PrintLinkedList Print a linked list
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func PrintLinkedList(node *ListNode) {
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if node == nil {
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return
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}
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var builder strings.Builder
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for node.Next != nil {
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builder.WriteString(strconv.Itoa(node.Val) + " -> ")
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node = node.Next
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}
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builder.WriteString(strconv.Itoa(node.Val))
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fmt.Println(builder.String())
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}
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