https://www.hellointerview.com/learn/system-design/answer-keys/leetcode (opens in a new tab)
If you can answer all of these questions, you understand how to design a leetcode system
- What's the functional requirements and non-functional requirements? and some out of scope
- How to define the core entities?
- How to define api or system interface?
- Draw a simple high-level design and improve it
- 用户如何浏览 problems list?
- 用户如何浏览 a problem and code a solution?
- 如何设计，使得用户可以提交他们的代码，并且快速得到反馈？ 有哪些解决方案？优缺点是什么？
- 用户如何浏览一个实时的排行榜？
- 如何设计使得系统做到隔离和安全当运行用户的代码时？
- 如何可以让获取实时排行榜更加高效？
- 如何扩展系统，使得可以支持高并发，高峰100k用户？
- 如何处理测试用例？