Really fun problem, but the test case is totally wrong. :-(
glad you liked the problem, but the test case is correct just obfuscated.
radius of a spherical planet
Sum of diagonal of a square matrix
Basics: 'Find the eigenvalues of given matrix
Array of Ones
Divide by 4
Is this number Munchhausen Narcissistic?
Strange Number Algorithms
Create numeric palindromes and their square roots
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