the text does not specify the expected order of the rows
It would be helpful if the text gave an example. Also, the test suite should be much richer - only two special cases does not really encourage people to write general solutions.
Based on Paul Berglund's solution (Solution 321219).
Not a great solution, but the test suite needs to be improved.
Getting logical indexes
Matrix which contains the values of an other matrix A at the given locations.
What's Your BMI?
find radius of cone
Count from 0 to N^M in base N.
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