OpenAI Coding Round Interview Questions

OpenAI coding interviews rounds are more similar (closer) to low level design (OOD) rounds than traditional leetcode style DSA interviews.

Questions are code heavy i.e. you will have to write lots of code, answer follow-up questions including how to handle concurrency.
And your code should be clean and well structured.

Good thing is that like Meta they also repeat questions frequently.
Many people got asked a question same as Rotting Oranges (slightly rephrased) in their phone screen round.

https://leetcode.com/problems/rotting-oranges/description/

These two questions were also asked in a single round:

https://leetcode.com/problems/count-complete-tree-nodes/

https://leetcode.com/problems/binary-tree-cameras/description/