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...
Most nonzero elements in row
Tic Tac Toe FTW
How long is the longest prime diagonal?
Generate N equally spaced intervals between -L and L
sum of non-primes
Read a Soroban Abacus
English to Pig Latin Translator
Make an N-dimensional Multiplication Table
First N Perfect Squares
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