package LeetCode_1721 /** * 1721. Swapping Nodes in a Linked List * https://leetcode.com/problems/swapping-nodes-in-a-linked-list/ * You are given the head of a linked list, and an integer k. Return the head of
先寻找出正数第k个节点和倒数第k个节点,然后交换二者的值,间接实现了交换节点的目的。 代码: class Solution { public ListNode swapNodes(ListNode head, int k) { ListNode A = head; //正数第k个节点A ListNode B = head; //倒数第k个节点B ListNode nodeK; //用来保存正数第k个节点A // step1: ...
1721. Swapping Nodes in a Linked List You are given theheadof a linked list, and an integerk. Returnthe head of the linked list afterswappingthe values of thekthnode from the beginning and thekthnode from the end (the list is1-indexed). Example 1: Input:head = [1,2,3,4,5], k...
ListNode next) { this.val = val; this.next = next; }9* }10*/11classSolution {12publicListNode swapNodes(ListNode head,intk) {13intlen = 0;14ListNode cur =head;15while(cur !=null)
I wrote a function that swaps twoconsecutivenodes, but then I realized quite a few problems: 1.) The nodes may not be adjacent to each other 2.) The nodes may be the first or last nodes in the list 3.) The nodes may be out of order (I assume the first one comes before the sec...
Swapping Nodes in a Linked List 2. Solution Version 1 classSolution:defswapNodes(self,head:ListNode,k:int)->ListNode:length=0ptr=headwhileptr:length+=1ptr=ptr.nextptr=head count=0whileptr:count+=1ifcount==k:beginning=ptrifcount==length-k+1end=ptr ...
想要换一个平台了,这里没有tag功能。 上次做这个题还是python one-pass solution就是用两个指针,找到两个node直接交换val即可 如果题目要求必须实现node的交换,则需要找到两个node的前一个node,进行swap 需要特殊判断两个node相邻的情况 /** * Definition for singly-linked list. ...
Two different Westgrid supercomputers have been used: Breezy, with nodes featuring 24 AMD cores at 2.4 GHz and up to 256 GB NUMA memory; and Hungabee, which is made up of 256 8-core SGI UV1000 computational nodes, each with 64 GB of memory. However, if not stated otherwise, each ...