https://leetcode.com/problems/design-twitter/ Design a simplified version of Twitter where users can post tweets, follow/unfollow another user and is able to see the 10 most recent tweets in the user's news feed. Your design should support the follow…

Design a simplified version of Twitter where users can post tweets, follow/unfollow another user and is able to see the 10 most recent tweets in the user's news feed. Your design should support the following methods: postTweet(userId, tweetId): Compo…

//先定义一个数据结构,代表一条微博,有两个内容:发布者id,微博id(代表微博内容) class TwitterData { int userId; int twitterId; public TwitterData(int userId,int twitterId) { this.twitterId = twitterId; this.userId = userId; } } //用一个map存储用户和各用户的关注用户 Map<Integer,Set<Integer>> use…

Object Oriented Programming python new concepts of the object oriented programming : class encapsulation inheritance polymorphism the three features of an object are : identity, state and behaviora class is an abstraction which regroup objects who ha…

Constructor :  Grammar: object.constructor Example: Javascript code: 1 function obj1() { this.number = 1; } var x1 = new String("Computer"); if (x1.constructor == String) document.write("This object is a String."); var x2 = new obj1; i…

一千个读者,一千个哈姆雷特.对于面对对象编程,书上都会告诉我们它有三个基本特性,封装,继承,多态,但谈起对这三点的见解,又是仁者见仁智者见智,感觉还是得多去编程中体验把 . 面向对象编程(OOP, Object Oriented Programming)是一种编写程序的方法,旨在提升开发大型程序的效率,使程序易于维护 . 面向对象编程是一种基于以下思路的程序设计方法:将关注点置于对象(Object)本身,对象的构成要素包含对象的行为及操作,以此为基础进行编程.这种方法使程序易于复用,软件的生产效…

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 日期 题目地址:https://leetcode.com/problems/design-twitter/description/ 题目描述 Design a simplified version of Twitter where users can post tweets, follow/unfollow another user and is a…

设计一个简化版的推特(Twitter),可以让用户实现发送推文,关注/取消关注其他用户,能够看见关注人(包括自己)的最近十条推文.你的设计需要支持以下的几个功能:    postTweet(userId, tweetId): 创建一条新的推文    getNewsFeed(userId): 检索最近的十条推文.每个推文都必须是由此用户关注的人或者是用户自己发出的.推文必须按照时间顺序由最近的开始排序.    follow(followerId, followeeId): 关注一个用户    un…

题目描述: Design a simplified version of Twitter where users can post tweets, follow/unfollow another user and is able to see the 10 most recent tweets in the user's news feed. Your design should support the following methods: postTweet(userId, tweetId):…

题目连接 https://leetcode.com/problems/design-twitter Design Twitte Description Design a simplified version of Twitter where users can post tweets, follow/unfollow another user and is able to see the 10 most recent tweets in the user’s news feed. Your de…