535. Encode and Decode TinyURL
TinyURL is a URL shortening service where you enter a URL such as https://leetcode.com/problems/design-tinyurl
and it returns a short URL such as http://tinyurl.com/4e9iAk
.
Design the encode
and decode
methods for the TinyURL service. There is no restriction on how your encode/decode algorithm should work. You just need to ensure that a URL can be encoded to a tiny URL and the tiny URL can be decoded to the original URL.
题目含义:设计一个短网址的编码和解码系统
1 public class Codec { 2 Map<Integer, String> map = new HashMap<>(); 3 4 // Encodes a URL to a shortened URL. 5 public String encode(String longUrl) { 6 map.put(longUrl.hashCode(),longUrl); 7 return "http://tinyurl.com/"+longUrl.hashCode(); 8 } 9 10 // Decodes a shortened URL to its original URL. 11 public String decode(String shortUrl) { 12 return map.get(Integer.parseInt(shortUrl.replace("http://tinyurl.com/", ""))); 13 } 14 }
【推荐】国内首个AI IDE,深度理解中文开发场景,立即下载体验Trae
【推荐】编程新体验,更懂你的AI,立即体验豆包MarsCode编程助手
【推荐】抖音旗下AI助手豆包,你的智能百科全书,全免费不限次数
【推荐】轻量又高性能的 SSH 工具 IShell:AI 加持,快人一步
· AI与.NET技术实操系列:基于图像分类模型对图像进行分类
· go语言实现终端里的倒计时
· 如何编写易于单元测试的代码
· 10年+ .NET Coder 心语,封装的思维:从隐藏、稳定开始理解其本质意义
· .NET Core 中如何实现缓存的预热?
· 25岁的心里话
· 闲置电脑爆改个人服务器(超详细) #公网映射 #Vmware虚拟网络编辑器
· 基于 Docker 搭建 FRP 内网穿透开源项目(很简单哒)
· 零经验选手,Compose 一天开发一款小游戏!
· 一起来玩mcp_server_sqlite,让AI帮你做增删改查!!