Grokking System Design Interview, Volume II
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Design Code Judging System like LeetCode (Medium)
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Step 1: System Definition

Step 1: System Definition

An online coding judge platform (similar to LeetCode) is a web-based system where users solve programming problems by writing code and receiving automated feedback. The primary purpose is to evaluate user-submitted code against predefined test cases in a secure, controlled environment and return the results quickly. Key entities in this system include:

  • Problem – A coding challenge with a description, input/output specification, and a set of test cases (with expected outputs). It also has metadata like difficulty, time/memory limits, etc.

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