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.
Extract leading non-zero digit
Generate a vector like 1,2,2,3,3,3,4,4,4,4
Multiples of a Number in a Given Range
Sum the 'edge' values of a matrix
Draw 'O' !
Return a list sorted by number of consecutive occurrences
Chess ELO rating system
Numbers spiral diagonals (Part 1)
Mirror, mirror on the wall, who is fairest of them all?
Expression or variable?
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