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World 6 · The Delivery Problem (TSP) · 11 min · PRO

Good-enough routes: heuristics

Fast answers that are close to the best

PRO · Puzzle Algorithms Lab

World 6: The Delivery Problem (TSP) 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.

  • Visit every stop once: the travelling salesman
  • Brute force blows up: factorial growth
  • When computers cannot be quick: hard problems
  • Make a maze: growing a spanning tree
  • Solve a maze: three ways out
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  • All 60 labs — every world, every lesson
  • Practice exams and certificates

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