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Puzzle 12: Level with me |
Alan and Danny are at opposite ends of a mountain range and need to get
together to think of more puzzles. They both start exactly at sea level
and want to stay at exactly the same height throughout the journey, even
if this means sometimes going backwards?
Can it be done?
A mountain range can be represented by a piece-wise linear curve in 2
dimensions.
See the diagram below.
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