*/classSolution{publicListNodereverseList(ListNode head){//1.基本问题的解if(head ==null|| head.next ==null){returnhead; }//2.将大问题分解成小问题ListNodereve=reverseList(head.next);//3.将小问题的解变成大问题的解head.next.next = head; head.next =null;returnreve; } } 对代码进行解释:...
解法二(Java) /*** Definition for singly-linked list. * public class ListNode { * int val; * ListNode next; * ListNode(int x) { val = x; } * }*/classSolution {publicListNode reverseList(ListNode head) {if(head ==null|| head.next ==null)returnhead;//处理最小输入的情况,即空链表...
Reverse Linked List II Reverse a linked list from position m to n. Do it in-place and in one-pass. For example: Given 1->2->3->4->5->NULL, m = 2 and n = 4, return1->4->3->2->5->NULL. Note: Given m, n satisfy the following condition: 1 ≤ m ≤ n ≤ length of ...
上面网页进行了解析,没怎么理解,有空下次继续。。。 Java 直接上面第一个代码的思路就可以,不会有最后有null问题 AI检测代码解析 public class Solution { public ListNode ReverseList(ListNode head) { if(head==null) return null; //head为当前节点,如果当前节点为空的话,那就什么也不做,直接返回null; List...
92. Reverse Linked List II leetcode-javai++文章分类Hadoop大数据 Reverse a linked list from position m to n. Do it in-place and in one-pass. For example: Given 1->2->3->4->5->NULL, m = 2 and n = 4, return 1->4->3->2->5->NULL....
* Definition for singly-linked list. * public class ListNode { * int val; * ListNode next; * ListNode(int x) { val = x; } * } */ classSolution{ publicListNodereverseList(ListNode head){ if(head ==null|| head.next ==null) { ...
Reverse Linked List Reverse a singly linked list. Note Create tail = null; Head loop through the list: Store head.next, head points to tail, tail becomes head, head goes to stored head.next; Return tail. Solution public class Solution { ...
How to reverse a Singly Linked List in Java https://www.youtube.com/playlist?list=PL6Zs6LgrJj3tDXv8a_elC6eT_4R5gfX4d 讲得比国内的老师清楚
java的reverse方法 在Java编程中，`reverse`方法可是一个非常实用且有趣的存在！它主要用于对各种数据结构中的元素顺序进行反转操作。下面就来详细地讲解一下这个方法。一、`StringBuilder`类中的`reverse`方法。1. 方法定义。`StringBuilder`类是可变字符序列，它提供了`reverse`方法来反转字符序列。其方法定义如下：pub...
Java字符串反转函数reverse() package test1; public class TestReverse { public static void main(String[] args) { String str2 = "Hello"; str2 = new StringBuffer(str2).reverse().toString(); System.out.println(str2); String message = "Hello"; StringBuilder rev = new StringBuilder(); for ...