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  • [Java]LeetCode237. 删除链表中的节点 | Delete Node in a Linked List

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    Write a function to delete a node (except the tail) in a singly linked list, given only access to that node.

    Given linked list -- head = [4,5,1,9], which looks like following:

    Example 1:

    Input: head = [4,5,1,9], node = 5
    Output: [4,1,9]
    Explanation: You are given the second node with value 5, the linked list should become 4 -> 1 -> 9 after calling your function.
    

    Example 2:

    Input: head = [4,5,1,9], node = 1
    Output: [4,5,9]
    Explanation: You are given the third node with value 1, the linked list should become 4 -> 5 -> 9 after calling your function.
    

    Note:

    • The linked list will have at least two elements.
    • All of the nodes' values will be unique.
    • The given node will not be the tail and it will always be a valid node of the linked list.
    • Do not return anything from your function.

    请编写一个函数,使其可以删除某个链表中给定的(非末尾)节点,你将只被给定要求被删除的节点。

    现有一个链表 -- head = [4,5,1,9],它可以表示为:

        4 -> 5 -> 1 -> 9
    

    示例 1:

    输入: head = [4,5,1,9], node = 5
    输出: [4,1,9]
    解释: 给定你链表中值为 5 的第二个节点,那么在调用了你的函数之后,该链表应变为 4 -> 1 -> 9.
    

    示例 2:

    输入: head = [4,5,1,9], node = 1
    输出: [4,5,9]
    解释: 给定你链表中值为 1 的第三个节点,那么在调用了你的函数之后,该链表应变为 4 -> 5 -> 9.
    

    说明:

    • 链表至少包含两个节点。
    • 链表中所有节点的值都是唯一的。
    • 给定的节点为非末尾节点并且一定是链表中的一个有效节点。
    • 不要从你的函数中返回任何结果。

    0ms

    1 class Solution {
    2     public void deleteNode(ListNode node) {
    3         node.val=node.next.val;
    4         node.next=node.next.next;
    5     }
    6 }

     1 /**
     2  * Definition for singly-linked list.
     3  * public class ListNode {
     4  *     int val;
     5  *     ListNode next;
     6  *     ListNode(int x) { val = x; }
     7  * }
     8  */
     9 class Solution {
    10     public void deleteNode(ListNode node) {
    11         
    12         int temp;
    13         temp = node.val;
    14         node.val = node.next.val;
    15         node.next.val =  temp;
    16         
    17         node.next = node.next.next;        
    18         
    19     }
    20 }
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  • 原文地址:https://www.cnblogs.com/strengthen/p/10205116.html
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