First test case is invalid. Please fix it.
I have fixed it.
and the fourth...
It must be OK now!
Least common multiple of many numbers
Back to basics 25 - Valid variable names
Area of an Isoceles Triangle
Is this triangle right-angled?
Net Present Value of a Stream of Cash Flows
Write c^3 as sum of two squares a^2+b^2
Pi Digit Probability
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