find root mean square of a signal x in less time than the test code and accurate to six places.
Swap the first and last columns
Determine if input is odd
Distance walked 3D
Make one big string out of two smaller strings
Find a subset that divides the vector into equal halves
Looking for Squares
Minimum possible M of the maximum side of a triangle of given area A.
speed vs size
radius of a spherical planet
Least common multiple of many numbers
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