Return x by adding a random number to it.
There is a serious disconnect between the problem statement and what is actually being tested.
Basic electricity in a dry situation
Find maximum value of a curve
Area of a circle
Compute LOG(1+X) in natural log
Geometrical meaning of determinant
Probabilities - More brains than luck
Non trivial identities - reshape
Remove collinear points in a set of 2D points defining a polygon
Simple polynomial evaluation
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