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Puzzling Adventures: Snow Walkers--How to Clear Streets of Snow More Effectively [Solution to Problem 2]

A fictional city grapples with the white stuff



Cloe Liane Shasha

Solution to Problem 2:

This solution requires plowing only 18 streets. That's the best I know of.
http://cs.nyu.edu/cs/faculty/shasha/papers/oneplow6x5-18.tiff

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