Test whether the first input x is an n-parasitic number: http://en.wikipedia.org/wiki/Parasitic_number. ( n is the second input.)
Examples:
parasitic(128205,4) ---> true
parasitic(179487,4) ---> true
parasitic(179487,3) ---> false
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might be best to add a test case to guard against test suite hacking
Far too few test cases. In fact, a serious issue with this problem is that there are too few parasitic numbers that will fit into even 64 bits for most values of n.
I've added some test cases, that will make it a bit more difficult to game this problem.
Cases 5 and 7 are identical, and I believe they are both wrong. 5 x 142857 = 714285. Isn't this a parasitic number? What am I missing?
Can the problem creator disqualify "solutions" that cheat? There should be a point penalty (-200) associated with cheating too.