http://www.geeksforgeeks.org/reverse-a-list-in-groups-of-given-size/ #include <iostream> #include <vector> #include <algorithm> #include <queue> #include <stack> #include <string> #include <fstream> #include <m…

Given a singly linked list, determine if it is a palindrome. Example 1: Input: 1->2 Output: false Example 2: Input: 1->2->2->1 Output: true Follow up:Could you do it in O(n) time and O(1) space? Sloving with O(3n) -> O(n) Idea: reversing th…

作者: 负雪明烛 id: fuxuemingzhu 个人博客:http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 数组+字典 平衡查找树+双指针 日期 题目地址:https://leetcode-cn.com/problems/two-sum-iii-data-structure-design/ 题目描述 Design and implement a TwoSum class. It should support the following operations:…

9 - Palindrome Number Determine whether an integer is a palindrome. Do this without extra space. Some hints: Could negative integers be palindromes? (ie, -1) If you are thinking of converting the integer to string, note the restriction of using extra…

Total Accepted: 48614 Total Submissions: 185356 Difficulty: Hard Given a linked list, reverse the nodes of a linked list k at a time and return its modified list. If the number of nodes is not a multiple of k then left-out nodes in the end should rem…

一.Reverse Linked List  (M) Reverse Linked List II (M) Binary Tree Upside Down (E) Palindrome Linked List /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode(int x) : val(x), next(NULL) {} * }; */ class…

1. Reverse Linked List 题目链接 题目要求: Reverse a singly linked list. Hint: A linked list can be reversed either iteratively or recursively. Could you implement both? 初想用递归来实现应该会挺好的,但最终运行时间有点久,达到72ms,虽然没超时.具体程序如下: /** * Definition for singly-linked list. *…

It helps to understands how recursive calls works. function Node(val) { return { val, next: null }; } function LinkedList() { return { head: null, tail: null, add(val) { const node = new Node(val); if (!this.head) { this.head = node; this.tail = node…

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 Output: 1->4->3->2->5->NULL 这个题目是在[LeetCode] 206. Reverse Linked List_Easy tag…

Source:http://v0ids3curity.blogspot.com/2015/04/data-structure-recovery-using-pin-and.html -------------------------------- Data Structure Recovery using PIN and PyGraphviz   This is a simple POC PIN tool to recover data structures in dynamically lin…