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.
Number of 1s in the Binary Representation of a Number
Back to basics 6 - Column Vector
Make a run-length companion vector
Find vampire numbers
Pandigital number n°2 (Inspired by Project Euler 32)
Mirror, mirror on the wall, who is fairest of them all?
Expression or variable?
Magic is simple (for beginners)
Return a list sorted by number of consecutive occurrences
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