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.
Scoring for oriented dominoes
Find nearest prime number less than input number
Divisible by 2
Verify Law of Large Numbers
Find files with extension ext in the current directory
Replicate elements in vectors
Numbers spiral diagonals (Part 2)
How many monitors are connected ?
Find the path through the cell
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