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Objective:
Design a URL shortening service similar to TinyURL or Bitly.
Requirements:
Functional Requirements:
Users can input a long URL and receive a shortened URL.
When someone accesses the shortened URL, they are redirected to the original long URL.
Non-Functional Requirements:
The system should be highly available.
The system should be scalable to handle a large number of URL shortening requests and redirects.
Shortened URLs should be unique and ideally short in length.