y-correct is incorrect.
Surface area is 2*pi*r*h+pi*r^2.
The solution claims pi*r*h+pi*r^2.
Please correct. 6/05/12
Whew...I thought I was being stupid and getting the formula wrong.
I went ahead and fixed the test. Thanks for the comments.
This Problem may as well be deleted. There is only one case in the Test Suite, and the required formula is given both in the Comments and within the Test Suite itself. There is no challenge when Players can simply copy-and-paste to 'solve' the Problem.
Sum all integers from 1 to 2^n
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