Problem 115. Distance walked 1D
Suppose you go from position 7 to 10 to 6 to 4. Then you have walked 9 units of distance, since 7 to 10 is 3 units, 10 to 6 is 4, and 6 to 4 is 2. Total distance traveled = 3 + 4 + 2 = 9.
Example:
Input x = [1 2 3 2] Output y is 3
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Venkatapathi
on 31 Dec 2013
nice problem
vahid simintan
on 8 Apr 2016
nice...
Shane Murphy
on 26 Apr 2017
Great problem!
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