Really fun problem, but the test case is totally wrong. :-(
glad you liked the problem, but the test case is correct just obfuscated.
Check if sorted
Replace Vector Elements
Symmetry of vector
03 - Matrix Variables 1
Matlab Basics II - Count rows in a matrix
is the number happy?
Convert vector datasets to plot with imagesc instead of scatter
Is this number Munchhausen Narcissistic?
remove nans fast
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