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.
Solution Stats
Problem Comments
4 Comments
Solution Comments
Show comments
Loading...
Problem Recent Solvers129
Suggested Problems
-
1059 Solvers
-
Back to basics 6 - Column Vector
1101 Solvers
-
1463 Solvers
-
485 Solvers
-
Find out sum and carry of Binary adder
1692 Solvers
More from this Author44
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
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().