Am I doing something wrong in cody submission?

I have solved couple of question on cody and cross checked my prog on matlab which showing exactly the same output which the question in cody needs. But everytime, its showing error in submission. I have attached the sample submission problem.

Answer 1

[Stephen23]

Your function returns y, which is just the index from sort and has nothing to do with the first column of x.

The code x([y],1) is not allocated to anything, so it will be discarded.

Note that the square brackets around y are totally superfluous:

https://www.mathworks.com/matlabcentral/answers/35676-why-not-use-square-brackets

[ANKUR KUMAR]

clear
 A  = [1 2 3 4 5;4 3 1 2 2]'
qw=sort2(A)

function y = sort2(x)
[~,y1]=sort(x(:,2));
y=x([y1],1)';
end

A =

       1     4
       2     3
       3     1
       4     2
       5     2

qw =

       3     4     5     2     1

This is also showing the error.

[Stephen23]

Remove the conjugate transpose and the superfluous square brackets.

[ANKUR KUMAR]

Thank you. Still doing silly mistakes.. at learning stage.