Return x by adding a random number to it.
There is a serious disconnect between the problem statement and what is actually being tested.
Project Euler: Problem 1, Multiples of 3 and 5
Back to basics 23 - Triangular matrix
Replace Vector Elements
03 - Matrix Variables 1
Is this triangle right-angled?
Performance - summation
Probabilities - More brains than luck
Area of polygon
Geometrical meaning of determinant
Remove collinear points in a set of 2D points defining a polygon
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