Problem 115. Distance walked 1D

Created by Amitava Biswas

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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493 solvers submitted 770 solutions (1.56 solutions/solver).

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Ned Gulley on 27 Jan 2012

Amitava, can you give a clearer idea of what your function inputs and outputs should look like?

Oleg Komarov on 28 Jan 2012

If you leave one test the solution is simply 9. As is this submission is very poor.

Franck Dernoncourt on 28 Jan 2012

Needs generalization and a larger test suite.

Philip on 31 Jan 2012

This is a pretty good idea for a problem but it's *very* poorly stated.

Ned Gulley on 2 Feb 2012

I cleaned up the problem statement and added a few more tests.

Mahesh on 2 Apr 2013

good idea...

Daniel Pereira on 15 Apr 2013 at 15:43

Very good problem. I had to solve the same one to determine whether a signal was oscillating or stable.

Problem 115. Distance walked 1D

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493 solvers submitted 770 solutions (1.56 solutions/solver).

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