Since matlab has so many different ways of representing the empty set, could you test for emptiness using isempty(...) rather than isequal(, ...) ?
Test suit # 4 should not compare out =  with output of the function but rather isempty(out) !!!
This cody problem is really nice. At first, I felt difficult to solve it without for or while. After that, I reached to a solution.
[n, bin] = histc(A, unique(A));
multiple = find(n ==1);
index = find(ismember(bin, multiple));
failed for 4 test suit help me
>> A = 1;A(1)=;size(A)
Are you in or are you out?
Return unique values without sorting
Stuff the Board
Change the sign of even index entries of the reversed vector
Solving Quadratic Equations (Version 1)
Signal Processing Basic - 1. Stretch a signal
BLOCK x3 (Version 2)
Diagonal of a Spiral Matrix
self description 2.0
weekday and month
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