In the place of "Find the sum of all products whose...", I would say: "Find the number of all products whose..." ;-)
Why  instead of 0?
Since I have kludged a solution together, can I have a hint?
this solution works on my comupter
I see the first test command line is corrupted
:( :( :(
I've fixed that first line in the test suite. Try it again.
Reverse Run-Length Encoder
Make a random, non-repeating vector.
How to reverse spdiags?
Mirror, mirror on the wall, who is fairest of them all?
Divisors for big integer
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