This problem needs to have its description fixed. It should be "Is the polynomial represented by (v/w) an integer for any integer x except for the roots of w? if the integer x is a root of w, we will have a NaN, which is the case for the test case #1 and the value x=1 for instance.
Extract leading non-zero digit
Project Euler: Problem 1, Multiples of 3 and 5
Back to basics 4 - Search Path
Make a run-length companion vector
Area of an equilateral triangle
given 3 sides, find area of this triangle
Distance walked 3D
Calories in a slice of pizza?
Angle of triangle
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