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.
Count from 0 to N^M in base N.
Find the maximum number of decimal places in a set of numbers
Return area of square
Draw 'O' !
Find files with extension ext in the current directory
Rank of magic square (for beginners)
Decrypt the cypher using XOR encryption (for beginners)
Longest Collatz Sequence
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