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...
Which doors are open?
Encode Roman Numerals
Read a column of numbers and interpolate missing data
Back to basics 14 - Keywords
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Make a 1 hot vector
Right Triangle Side Lengths (Inspired by Project Euler Problem 39)
Multiples of a Number in a Given Range
N-Dimensional Array Slice
Return the first and last characters of a character array
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