You could at least bother to write a reference solution.
A random test case was added to prevent hard-coded solutions.
Add two numbers
Is it a number?
Return area of square
Is the input divisible by 3?
Rotate matrix by -90 degrees
Calculate cosine without cos(x)
Calculate the answer to life the universe and everything
Determinate if day D is a date that occurs during Daylight Saving Time in Italy
How many hours are there in a day in Italy?
Calculate the hypotenuse of a right triangle without using ^ and sqrt ()
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