Given a linked list, rotate the list to the right by k places, where k is non-negative. Example 1: Input: 1->2->3->4->5->NULL, k = 2 Output: 4->5->1->2->3->NULL Explanation: rotate 1 steps to the right: 5->1->2->3-&g…

原题地址 我一直不太理解为什么叫rotate,翻译成"旋转"吧,似乎也不像啊.比如: 1->2->3->4->5->NULL 向右旋转2的距离,变成了: 4->5->1->2->3->NULL 后来琢磨半天+跟人讨论,似乎可以这么理解"rotate" 1. 循环shift.这个比较容易理解. 2. 环旋转.意思是把list首尾连接成一个环进行旋转.想象有一桌菜,你坐在桌边,原先list头部的那盘菜现在就在你…

Given a list, rotate the list to the right by k places, where k is non-negative. For example:Given 1->2->3->4->5->NULL and k = 2,return 4->5->1->2->3->NULL. 问题:给定列表 和一个整数 k ,旋转列表最后 k 个元素至列表最前面. 关键是找到最后元素 lastOne 和 旋转后列表新的最后元素…

Given a linked list, rotate the list to the right by k places, where k is non-negative. Example 1: Input: 1->2->3->4->5->NULL, k = 2 Output: 4->5->1->2->3->NULL Explanation: rotate 1 steps to the right: 5->1->2->3-&g…

1. 原题链接 https://leetcode.com/problems/rotate-list/description/ 2. 题目要求 给出一个链表的第一个结点head和正整数k,然后将从右侧开始数第k个结点之后的链表与之前的链表交换位置,例如 3. 解题思路 (1)首先要注意head结点不是指头结点,而是指第一个结点: (2)当head为null或者链表中只有一个结点时,返回head: (3)个人觉得题目出的很不友好,当k=链表的长度时,返回的时原链表:当k大于链表的长度时,则不是...…

Rotate List  Given a list, rotate the list to the right by k places, where k is non-negative. For example: Given 1->2->3->4->5->NULL and k = 2, return 4->5->1->2->3->NULL. 思路:题目非常清晰.思路是先得到链表长度.再从头開始直到特定点,開始变换连接就可以. 代码例如以下: /*…

类似于找链表的后k个节点 不同的是要把前边的接到后边 public ListNode rotateRight(ListNode head, int k) { //特殊情况 if (head==null||head.next==null||k==0) return head; int len = 0; ListNode p = head; //计算链表长度,防止k大于长度 while (p!=null) { len++; p = p.next; } //k大于等于len的情况 k = k>=len…

[LeetCode]61. Rotate List 解题报告(Python) 标签(空格分隔): LeetCode 作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.me/ 题目地址:https://leetcode.com/problems/rotate-list/description/ 题目描述: Given a linked list, rotate the list to the right by k places, where k…

leetcode - 48. Rotate Image - Medium descrition You are given an n x n 2D matrix representing an image. Rotate the image by 90 degrees (clockwise). Note: You have to rotate the image in-place, which means you have to modify the input 2D matrix direct…

61. Rotate List(M) Given a list, rotate the list to the right by k places, where k is non-negative. For example: Given ->->->->->NULL and k = , ->->->->->NULL. Total Accepted: 102574 Total Submissions: 423333 Difficulty: Medi…