How do I practice coding and algorithm questions?

Use PracHub's coding console to write, test, and debug your solutions in Python or JavaScript. View hints, test against sample inputs, and compare with official solutions.

What difficulty level is this coding question?

This is a medium difficulty Coding & Algorithms question, commonly asked during Onsite rounds at OpenAI.

What role is this question designed for?

This question is commonly asked for Machine Learning Engineer candidates at OpenAI during technical interviews.

Find Minimum Compatible Version | OpenAI Coding Question

Quick Overview

This question evaluates binary search, monotonic predicates, careful version ordering, and cost-aware optimization of expensive compatibility checks. It is commonly asked in the Coding & Algorithms domain to test reasoning about monotonicity, minimizing API calls, and adapting search strategies when monotonicity holds only within subranges; the level of abstraction combines conceptual understanding of monotone properties with practical application of efficient search techniques.

medium
OpenAI
Coding & Algorithms
Machine Learning Engineer