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…

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…

For example we have: ["p", "r", "e", "f", "e", "t", " ", "m", "a", "k", "e", " ", "p", "r", "a", "t&…

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…

iterative太简单不写了 http://www.geeksforgeeks.org/write-a-function-to-reverse-the-nodes-of-a-linked-list/ #include <iostream> #include <vector> #include <algorithm> #include <queue> #include <stack> #include <string> #includ…

Reverse a linked list from position m to n. Do it in-place and in one-pass. For example:Given 1->2->3->4->5->NULL, m = 2 and n = 4, return 1->4->3->2->5->NULL. Note:Given m, n satisfy the following condition:1 ≤ m ≤ n ≤ lengt…

Reverse a linked list from position m to n. Do it in-place and in one-pass. For example:Given 1->2->3->4->5->NULL, m = 2 and n = 4, return 1->4->3->2->5->NULL. Note:Given m, n satisfy the following condition:1 ≤ m ≤ n ≤ lengt…

Reverse Linked List II Reverse a linked list from position m to n. Do it in-place and in one-pass. For example:Given 1->2->3->4->5->NULL, m = 2 and n = 4, return 1->4->3->2->5->NULL. Note:Given m, n satisfy the following cond…

Reverse a linked list from position m to n. Do it in-place and in one-pass. For example:Given 1->2->3->4->5->NULL, m = 2 and n = 4, return 1->4->3->2->5->NULL. 思路: 好困啊,脑子晕晕的. 转了半天AC了.但写的很罗嗦,要学习大神的写法. 注意翻转的写法. 用伪头部 大神14行简洁代码 L…

Reverse a linked list. Have you met this question in a real interview? Yes Example For linked list 1->2->3, the reversed linked list is 3->2->1 Challenge Reverse it in-place and in one-pass LeetCode上的原题,请参见我之前的博客Reverse Linked List. 解法一: class…