Given a vector of integers, remove the elements that have appeared only once. The output elements should be in exact order as the input except the single elements being removed.
Example:
Input: vec = [2 2 1 2 3 4 1 2];
Output: [2 2 1 2 1 2];
Loops are not allowed.
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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) !!!
Two requests:
1. Please don't add intentional infinite loops to the test suite.
2. Please take more care when scanning for forbidden keywords. "x(grouptransform(x', x', @numel) > 1)" would be a perfectly good solution, but fails the test suite because "grouptransform" contains the letters "for".
Thanks.
Test suite has been updated -
The infinite loop has been cleared out, scanning for 'for' loop has been modified and empty sets will now be verified using isempty().