pyPython Practice LabFrom first print to final round
PYTHON PROBLEM 311 · Advanced

Check if courses can be completed: Acyclic prerequisites

Determine that every course can be completed in some valid order.

topological sort · cycle detection · company screentopological sortcycle detectioncompany screen
PROBLEM OVERVIEW

What this Python exercise asks you to practise

This scenario tests check if courses can be completed. It belongs to the Graphs and Connectivity roadmap and uses the topological sort · cycle detection · company screen pattern.

Graph representation, BFS, DFS, shortest paths, topological order, and union-find.

COMPLETE WORKSPACE

Learn the plan, trace the logic and run the solution

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SKILL TO CARRY FORWARD

Pattern relevance

This exercise strengthens topological sort · cycle detection · company screen. Be ready to explain the input, the rule, the boundary cases, and why the chosen approach is appropriate.