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World 5 · Find the Way: A* vs Dijkstra · 12 min · PRO

A*: Dijkstra with a compass

Estimating the rest of the way

PRO · Puzzle Algorithms Lab

World 5: Find the Way: A* vs Dijkstra is part of PRO

The first world of Puzzle Algorithms Lab is free. PRO opens the other 25 lessons in 6 worlds — simulations, quizzes and all.

  • Shortest path on a grid: from BFS to weights
  • Dijkstra: always expand the cheapest
  • A drone in a 3D city: more dimensions, same idea
  • Visit every stop once: the travelling salesman
  • Brute force blows up: factorial growth
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  • All 60 labs — every world, every lesson
  • Practice exams and certificates

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