Problem 115. Distance walked 1D

Created by AMITAVA BISWAS

Solve Later

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

Solve

Solution Stats

5023 Solutions
2494 Solvers

Last Solution submitted on Mar 21, 2025

Last 200 Solutions

Problem Comments

11 Comments

11 Comments

Show 8 older comments

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

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

Anders Edfors Vannevik on 10 Jun 2013

Interesting problem

Venkatapathi on 31 Dec 2013

nice problem

vahid simintan on 8 Apr 2016

nice...

Shane Murphy on 26 Apr 2017

Great problem!

Solution Comments

Show comments

Problem Recent Solvers2494

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Problem 115. Distance walked 1D

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers2494

Suggested Problems

More from this Author100

Problem Tags

Community Treasure Hunt

Problem 115. Distance walked 1D

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers2494

Suggested Problems

More from this Author100

Problem Tags

Community Treasure Hunt

Players