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...
Right and wrong
Project Euler: Problem 7, Nth prime
Check if number exists in vector
Compare two input matrices
Number of Circles in a Number
Television Screen Dimensions
Return the first and last characters of a character array
Triangle Numbers Below N
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