isOddOrEven-collection

collection of the """best""" isOddOrEven functions

Contributing

1. give your entry a descriptive or creative filename
2. use the correct naming convention standard for the programming language (or lack thereof)
3. place it in the respective folder for it's language (if it doesn't exist yet, just create one).
4. BONUS! include the efficiency of your algorithm as a comment in the file. Eg. "runs with O(n!)"