You need to take into account what the Ultimate Question is as well...
Finding Perfect Squares
Which doors are open?
Is it a number?
Flip the vector from right to left
Calculate cosine without cos(x)
Calculate the hypotenuse of a right triangle without using ^ and sqrt ()
Determinate if day D is a date that occurs during Daylight Saving Time in Italy
Calculate sin(x) without sin(x)
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