Return how many integer grid points there are inside a 3D sphere of radius r centred at (0,0,0) (including points on the edge).
Neither string operations nor interpolations are allowed!
Back and Forth Rows
Find state names that end with the letter A
Number of 1s in the Binary Representation of a Number
Mirror Image matrix across anti-diagonal
Dots in a Circle
Volume of a Simplex
Radial Zernike polynomials
Chebyshev polynomials of the 2nd Kind
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