Given a matrix, m-by-n, find all the rows that have the same "increase, decrease, or stay same" pattern going across the columns as the first row does. Do not list the row as a match to itself.
Example:
Input a = [1 2 3 0
5 6 7 9
2 7 8 7]
Output b is 3since the third column follows the increase-increase-decrease pattern used in vector a.
Solution Stats
Problem Comments
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1 Comment
Oleg Komarov
on 28 Jan 2012
Not column, but row wise.
Solution Comments
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1 Comment
William Moraga
on 19 May 2018
this is actually pretty fun
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1 Comment
Roche de Guzman
on 19 Nov 2016
amazing:)
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1 Comment
Gergely Patay
on 16 Dec 2014
I'm not proud of this solution, the scoring system is clearly flawed.
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1 Comment
Nicholas Howe
on 20 Nov 2012
Seems like the filter preventing abuse of @eval needs some work!
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1 Comment
Claudia
on 15 Nov 2012
Nice! I learned something from you.
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1 Comment
Farhad
on 12 Sep 2012
This solution is wrong. It detects a common patten among any two rows and not just the first row and other rows.
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1 Comment
Cris Luengo
on 16 Jul 2012
What is the point?
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