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.
So many choices
Make a random, non-repeating vector.
Find third Side of a right triangle given hypotenuse and a side. No * - or other functions allowed
Mysterious digits operation (easy)
Two functions (to be sure)
Recycled Numbers (CodeJam Qualification Round 2012)
Numbers spiral diagonals (Part 1)
Find files with extension ext in the current directory
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