More tests. A lot of solutions assume that mask has only 2 columns.
Good suggestion. I've added a couple more tests to the suite, including one that has three columns in the logical mask.
Is there a way to just view the solution to this? I've been trying to do this for my own work, and this problem is the only thing I've found that purports to do what I need, but of course it doesn't actually tell me how.
Is this matrix orthogonal?
Remove from a 2-D matrix all the rows that contain at least one element less than or equal to 4
The sum of the numbers in the vector
High school cafeteria
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