Problem 2091. return row and column indices given 2 values which define a range

Created by Marcel

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Inspired by problem http://www.mathworks.co.kr/matlabcentral/cody/problems/856-getting-the-indices-from-a-matrice Inputs: - matrix A, lower limit, upper limit Ouputs: - indices of matrix elements which are bigger than or equal to lower limit and smaller than upper limit
A little complication: let your function be able to deal with a random order of the input arguments.
If all input arguments have the same size, assume that the first argument is the "matrix" with value(s).
Don't use "find" and don't use "regexp".

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Last Solution submitted on Oct 13, 2025

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shahriar memaran on 26 Mar 2017

last test suit gives an error:"'Error using assert The condition input argument must be a scalar logical. Error in TestPoint11 (line 5) assert(and(R9==1,C9==1))"
also even when I'm using find just to check the results of test suits some of them fail. please fix it ... Thank you !

Nikolaos Nikolaou on 17 Jun 2020

HINT!

although the problem does not STATE it you are required to post the solution as a column vector (rowidx colidx that is) . In the case that donnot use magic matrix the solution will pass as row vector too but for the ones that the matrix is magic it wont.

Dyuman Joshi on 1 Dec 2020

As @Shahriar mentioned, the test suits still have problems. Kindly fix it.
#1,#4: assumes x2 is the lower limit and x3 is the upper limit while all other take x2 as upper limit

goc3 on 2 Dec 2020

@Dyuman Joshi: the problem description specifically states that the inputs can be passed in in random order. What you indicate as an error is actually intended.

Dyuman Joshi on 3 Dec 2020

@goc3 I must have overlooked it while solving the problem.
Thanks for pointing it out.

VBBV on 18 Apr 2024

ridiculous test cases , idk who created the test cases

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Problem 2091. return row and column indices given 2 values which define a range

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Problem 2091. return row and column indices given 2 values which define a range

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