Cody Problem 38. Return a list sorted by number of occurrences

I found difficulties with the Problem 38 on Cody here is my solution:

function y = popularity(x)
[a,b]=size(x);
s=ones(a,b);
for i=1:b
    for j=1:b
        if i~=j
            if x(i)==x(j)
                s(i) = s(i) +1;
            end
        end
    end
end
[A,o]= sort(s,'descend');
 for k =1:b
     L(k)=x((o(k)));
 end
y= unique(L,'stable');
end

Unfortunately it doesn't work for the second case, can anyone help me with that!

Thanks in advance.

Answer 1

[David Hill]

Take a look at the functions, histcounts(), sort(), and unique(). By combining these functions you can answer the problem in a few lines without any loops.

[Hidd_1]

It worked Thank you!