Validate a training courses catalog

Q: 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.

Q: What difficulty level is this coding question?

This is a medium difficulty Coding & Algorithms question, commonly asked during Technical Screen rounds at Amazon.

Q: What role is this question designed for?

This question is commonly asked for Software Engineer candidates at Amazon during technical interviews.

Question

Validate a training courses catalog

PracHub · Accepted Answer

This question evaluates understanding of directed graphs, cycle detection, dependency validation, and data consistency in the context of a training course catalog with prerequisites.

Quick Overview

Validate a training courses catalog