Li Kou today's question -535 Encryption and decryption of tinyurl

535. TinyURL Encryption and decryption

difficulty ： secondary

This can also be called medium difficulty ？

It may be difficult to figure it out .

public class Codec {
    

    // Encodes a URL to a shortened URL.
    public String encode(String longUrl) {
    
        return longUrl;
    }

    // Decodes a shortened URL to its original URL.
    public String decode(String shortUrl) {
    
        return shortUrl;
    }
}

// Your Codec object will be instantiated and called as such:
// Codec codec = new Codec();
// codec.decode(codec.encode(url));