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Find your way

Posted on: November 25th, 2013 by

You have a road network where all intersections are 3-way intersections. You are trying to find a restaurant that's located at a particular intersection. However, all intersections are identical (except the one with the restaurant). Also, you are not allowed to mark anything on the roads. How will you find your way to the restaurant?

- via Math Exchange

One Response to Find your way

  1. Kevin Chen had this to say about that:

    A somewhat related problem is this: https://www.cs.cmu.edu/puzzle/puzzle17.html

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