【LeetCode】92. Reverse Linked List II Reverse Linked List II Reverse a linked list from positionmton. Do it in-place and in one-pass. For example: Given1->2->3->4->5->NULL,m= 2 andn= 4, return1->4->3->2->5->NULL. Note: Givenm,nsatisfy the following condition: 1≤m≤...
1/**2* Definition for singly-linked list.3* struct ListNode {4* int val;5* ListNode *next;6* ListNode(int x) : val(x), next(NULL) {}7* };8*/9classSolution {10public:11ListNode* reverseBetween(ListNode* head,intm,intn) {12intcnt =1;1314//order: last->start(m)->...->en...
Time: O(n) as we have to traverse all the nodes in the linked list. Space: O(n) as the recursive method will invoked against each node in the list. Similar question: https://leetcode.com/problems/reverse-linked-list-ii/...
92. Reverse Linked List II** https://leetcode.com/problems/reverse-linked-list-ii/ 题目描述 Reverse a linked list from position m to n. Do it in one-pass. Note: 1 ≤ m ≤ n ≤ length of list. Example: Input:1->2->3->4->5->NULL, m=2, n=4 Out...
Problem link: Explore - LeetCodeleetcode.com/explore/interview/card/top-interview-questions-easy/93/linked-list/560/ Solutions: 1. Iterative method: The idea of this method is just to reverse the direction of the link one by one. And because you are reversing the direction, in order to...
//https://leetcode.cn/problems/middle-of-the-linked-list/ //链表的中间节点 struct ListNode* middleNode(struct ListNode* head) { if (head->next == NULL) { return head; } else { struct ListNode* cur = head; int count = 0; while (cur != NULL) ...
Can you solve this real interview question? Reverse Nodes in k-Group - Given the head of a linked list, reverse the nodes of the list k at a time, and return the modified list. k is a positive integer and is less than or equal to the length of the linke
给你一个 32 位的有符号整数x,返回将x中的数字部分反转后的结果。 如果反转后整数超过 32 位的有符号整数的范围[−231, 231− 1],就返回 0。 假设环境不允许存储 64 位整数(有符号或无符号)。 示例1: 输入:x = 123输出:321 示例2: 输入:x = -123输出:-321 ...
Problem link:https://leetcode.com/explore/interview/card/top-interview-questions-easy/127/strings/879/Solutions:This is trivial class Solution: def reverseString(self, s: List[str]) -> None: "…
2014-05-03 05:54 −Link: http://oj.leetcode.com/problems/reverse-nodes-in-k-group/ Given a linked list, reverse the nodes of a linked list k at a time and ... Atlas-Zzz 0 120 Reverse Nodes in k-Group 2018-02-05 22:45 −Problem: Given a linked list, reverse the nodes of...