Package g0501_0600.s0535_encode_and_decode_tinyurl

Class Codec

  • public class Codec
extends Object
    535 - Encode and Decode TinyURL.

    Medium

    > Note: This is a companion problem to the System Design problem: Design 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 a class to encode a URL and decode a tiny URL.

    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.

    Implement the Solution class:

    • Solution() Initializes the object of the system.
    • String encode(String longUrl) Returns a tiny URL for the given longUrl.
    • String decode(String shortUrl) Returns the original long URL for the given shortUrl. It is guaranteed that the given shortUrl was encoded by the same object.

    Example 1:

    Input: url = “https://leetcode.com/problems/design-tinyurl”

    Output: “https://leetcode.com/problems/design-tinyurl”

    Explanation:

     Solution obj = new Solution();
 string tiny = obj.encode(url); // returns the encoded tiny url.
 string ans = obj.decode(tiny); // returns the original url after deconding it.

    Constraints:

    • 1 <= url.length <= 104
    • url is guranteed to be a valid URL.

    • Constructor Detail

      • Codec

        public Codec()