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...
Find state names that start with the letter N
The Tower of Hanoi
Scoring for oriented dominoes
Getting the absolute index from a matrix
Area of a Square
Roll the Dice!
Cache me Outside
Guess the Coefficients!
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