Algorithm Atlas

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Reconstruct Itinerary: step-by-step visual explanation

Learn the Reconstruct Itinerary problem with a step-by-step DSA animation. Follow the Topological Sort solution with synced C#, Python, and Java code.

Topological Sort pattern

Kahn’s algorithm uses indegrees and a queue; DFS uses reverse finishing order. Both expose dependency-respecting sequences.

Difficulty: Hard · Approach: Visible frontier and visited order

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