Leetcode 535:encode and Decode tinyurl

TinyURL is a URL shortening service where you enter a URL such as and https://leetcode.com/problems/design-tinyurl it returns a short URL such as http://tinyurl.com/4e9iAk .

Design the and methods for the encode decode tinyurl service. There is no restriction on what your encode/decode algorithm should work. You just need to ensure, that a URL can is encoded to a tiny URL and the tiny URL can is decoded to the original URL.

1  Public classCodec {2     Private Const stringPref ="http://tinyurl.com/";3     4     //In thoery should use a hash founction5     Private intCounter =0;6     Privatedictionary<int,string> Hashtourl =Newdictionary<int,string>();7     Privatedictionary<string,int> Urltohash =Newdictionary<string,int>();8     9     //encodes a URL to a shortened URLTen      Public stringEncodestringLongurl) { One         if(!Urltohash.containskey (longurl)) A         { -Urltohash[longurl] =counter; -Hashtourl[counter] =Longurl; thecounter++;  -         } -          -         returnPref +Urltohash[longurl]; +     } -  +     //decodes a shortened URL to its original URL. A      Public stringDecodestringShorturl) { at         inthash = Int32.Parse (shorturl.substring ( +, Shorturl.length- +)); -          -         returnHashtourl[hash]; -     } - } -  in //Your Codec object would be instantiated and called as such: - //Codec Codec = new Codec (); to //codec.decode (Codec.encode (URL));

Leetcode 535:encode and Decode tinyurl