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hello-algo/codes/csharp/utils/ListNode.cs

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// File: ListNode.cs
// Created Time: 2022-12-16
// Author: mingXta (1195669834@qq.com)
namespace hello_algo.utils;
/* Definition for a singly-linked list node */
public class ListNode(int x) {
public int val = x;
public ListNode? next;
/* Generate a linked list with an array */
public static ListNode? ArrToLinkedList(int[] arr) {
ListNode dum = new(0);
ListNode head = dum;
foreach (int val in arr) {
head.next = new ListNode(val);
head = head.next;
}
return dum.next;
}
/* Get a list node with specific value from a linked list */
public static ListNode? GetListNode(ListNode? head, int val) {
while (head != null && head.val != val) {
head = head.next;
}
return head;
}
public override string? ToString() {
List<string> list = [];
var head = this;
while (head != null) {
list.Add(head.val.ToString());
head = head.next;
}
return string.Join("->", list);
}
}