publicboolisLoopList(ListNode<T> head){ListNode<T> slowPointer, fastPointer;//使用快慢指针,慢指针每次向前一步,快指针每次两步slowPointer = fastPointer = head;while(fastPointer != null && fastPointer.next != null){slowPointer = s
206. Reverse Linked List 逆序整个链表。逆序操作可以看作:依次遍历链表,将当前结点插入到链表头。 publicListNodereverseList(ListNode head){ListNodenewHead=null;for(ListNodecurr=head; curr !=null; ) {ListNodetemp=curr.next; curr.next = newHead;// insert to the head of listnewHead = curr; curr ...
LeetCode 分类刷题 —— Linked List 前言 最近有朋友问我怎么没有更新文章了,因为最近有空的时候都在刷 LeetCode,零零星星刷了快 2 个月了,也累积了不少题目了,所以最近打算把做的几百道题归类,总结一下。所有题目的代码在github.com/halfrost/Le…,每道题都有测试用例和测试代码。 Linked List 的 Tips: ...
82. Remove Duplicates from Sorted List II 题解 86. Partition List 题解 328. Odd Even Linked List 题解 1019. Next Greater Node In Linked List 题解 817. Linked List Components 题解 也可以用递归的方式遍历链表,但这种方式会重复访问节点,时间复杂度比O(n)高很多。 相关LeetCode题: 24. Swap No...
Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity. Solution 1: 简单的分治法。但是leetcode上给了个heap标签,猜想是对k个lists同时sort,维护一个min heap。todo。 1 2 3 4 5 6 7 8 9 10 ...
https://leetcode.com/problems/palindrome-partitioning-ii/ 题目: Given a string s, partition s such that every substring of the partition is a palindrome. Return the minimum cuts needed for a palindrome partitioning of s. For example, given s = “aab”, ...
86.Partition_List 88.合并两个有序数组 89.格雷编码 9.回文数 92.Reverse_Linked_ List_ II 93.复原IP地址 94.Binary_Tree_Inorder_Traversal helps README.md React .commitlintrc.js .gitignore .lintmdrc .yarnrc README.md package.json roadmap.png 拼多多内推.mdBreadcrumbs blog /...
[LeetCode] 430. Flatten a Multilevel Doubly Linked List,Youaregivenadoublylinkedlistwhichinadditiontothenextandpreviouspointers,itcouldhaveachildpointer,whichmayormaynotpointtoa
Given a linked list and a value x, partition it such that all nodes less than x come before nodes greater than or equal to x. You should preserve the original relative order of the nodes in each of the two partitions. Example: Input: head = 1->4->3->2->5->2, x = 3Output: ...
【1】链表删除 203. Remove Linked List Elements 解法一:遍历删除,需要新建一个dummy node,否则无法return head node 解法二:递归删除(待补充) 237. Delete Node in a Linked List 没有前一个node,无法用前一个指向当前node的后一个。 19. Remove Nth Node From End