Insert data in the linked list after specified number of node is a little bit complicated. But the idea is simple. Suppose, we want to add a node after 2nd position. So, the new node must be in 3rd position. The
That is the basic code for traversing a list. The if statement ensures that there is something to begin with (a first node). In the example it will always be so, but if it was changed, it might not be true. If the if statement is true, then it is okay to try and access the n...
/*** 找到有环链表的入口* @param head* @return*/publicstatic<T> ListNode<T>findEntranceInLoopList(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boolean isLoop =false;slowPointer = fastPointer = head;while(fastPointer != null && fa...
链表(Linked List)是一种常见的数据结构,它通过指针或引用将一系列节点连接起来。与数组相比,链表具有动态调整大小、插入和删除元素时不需要移动其他元素等优点。在LeetCode中,链表题目通常涉及到链表的遍历、查找、插入、删除等操作,需要我们熟练掌握链表的基本操作。 首先,我们来了解链表的基本结构和实现。在Python中,...
【Linked List Cycle】cpp 题目: Given a linked list, determine if it has a cycle in it. Follow up: Can you solve it without using extra space? 代码: 用hashmap版 /** * Definition for singly-linked list. * struct ListNode { * int val;...
我的LeetCode刷题记录 Max/LeetCodegitee.com/ProgrammerMax/leet-code.git 1. 题目:两数相加—— 2 给你两个 非空 的链表,表示两个非负的整数。它们每位数字都是按照 逆序 的方式存储的,并且每个节点只能存储 一位 数字。 请你将两个数相加,并以相同形式返回一个表示和的链表。 你可以假设除了数字 0...
// file run.cpp#include"create_list.h"intmain(intargc,char*argv[]){create_list<char>created_list;for(chari=65;i<75;i++)created_list.insert(i);created_list.display(); Conclusion This article provides a detailed explanation of how linked lists are created using templates in C++. After go...
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。
https://leetcode-cn.com/problems/reverse-linked-list-ii/ 题目描述 反转从位置 m 到 n 的链表。请使用一趟扫描完成反转。 说明: 1 ≤ m ≤ n ≤ 链表长度。 示例: 输入: 1->2->3->4->5->NULL, m = 2, n = 4 输出: 1->4->3->2->5->NULL ...
Given a sorted linked list (elements are sorted in ascending order). Eliminate duplicates from the given LL, such that output LL contains only unique elements. In this question, we are given a sorted linked list with duplicate elements in it. Our task is to remove the duplicate nodes of th...