Nice expression for the usage test. Maybe one can add function "dec2base", cause the return type is a String.
The problem description should mention that dec2base isn't allowed either.
This will fail to detect certain palindromes which contain zero e.g. 10101 however the test suite doesn't (yet) contain any such.
There's something strange with the Cody test suites today...
High school cafeteria
Make an awesome ramp for a tiny motorcycle stuntman
Flip the main diagonal of a matrix
Duplicate each element of a vector.
Recurring Cycle Length (Inspired by Project Euler Problem 26)
Project Euler: Problem 16, Sums of Digits of Powers of Two
The Dark Side of the Die
ASCII Birthday Cake
Next Lower Power of B
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