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 ...
Given a node from a Circular Linked List which is sorted in ascending order, write a function to insert a valueinsertValinto the list such that it remains a sorted circular list. The given node can be a reference toanysingle node in the list, and may not be necessarily the smallest valu...
Sort a linked list using insertion sort. 思路: 头插法。用头结点可以简化插入链表时候的操作,因为要考虑插入链表中间和表头两种情况,插入表头时,head就要更新,还要判断pre指针是否为空 算法: AI检测代码解析 public ListNode insertSortList(ListNode head, ListNode t) { ListNode p = head.next, pre = head;...
findInsertPos(dummy, cur->val); ListNode* temp = cur->next; cur->next = node->next; node->next = cur; cur = temp; } return dummy->next; } private: ListNode* findInsertPos(ListNode* head, int x) { ListNode* pre = nullptr; for...
1、旋转链表:Rotate List - LeetCode Given a linked list, rotate the list to the right bykplaces, wherekis non-negative. class Solution { public: ListNode* rotateRight(ListNode* head, int k) { if(!head)return head; ListNode* tail=head,*newtail=head,*newhead; int len=1;//记录链表长度...
Sort a linked list using insertion sort. 题意 对链表进行插入排序。 插入排序的动画演示如上。从第一个元素开始,该链表可以被认为已经部分排序(用黑色表示)。每次迭代时,从输入数据中移除一个元素(用红色表示),并原地将其插入到已排好序的链表中。插入排序算法: ...
Linked List Cycle II Medium java 708 Insert into a Cyclic Sorted List Medium java 拆分链表 例题:86 Partition List 【medium】 题意:给定一个链表以及一个目标值,把小于该目标值的所有节点都移至链表的前端,大于或等于目标值的节点移至链表的尾端,同时要保持这两部分在原先链表中的相对位置。 test case...
Given the following multilevel doubly linked list: 代码语言:javascript 代码运行次数:0 运行 复制 We should return the following flattened doubly linked list: 代码语言:javascript 代码运行次数:0 运行 复制 【解答】要把多层的双向链表压平。 大致思路上应该说没有什么难的,但是细节处理的坑比较多。源链...
0141 Linked List Cycle LeetCode 力扣 Python CSDN Easy 双指针 0144 Binary Tree Preorder Traversal二叉树的前序遍历 LeetCode 力扣 Python CSDN Medium 二叉树 0145 Binary Tree Postorder Traversal二叉树的后序遍历 LeetCode 力扣 Python CSDN Medium 二叉树 0153 Find Minimum in Rotated Sorted Array LeetCode...
430.Flatten-a-Multilevel-Doubly-Linked-List (H-) 457.Circular-Array-Loop (H-) 708.Insert-into-a-Cyclic-Sorted-List (H-) 1474.Delete-N-Nodes-After-M-Nodes-of-a-Linked-List (M+) 1670.Design-Front-Middle-Back-Queue (M+) 1756.Design-Most-Recently-Used-Queue (H) Reverse Linked List...