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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
In haskell, attempting to run the code just results in "File name does not match module name".
Why are there so many checks in isPalindromic() before checking if the reverse is equal to the starting number? Seems redundant to me. I ran a test and found that if you change isPalindromic() to just be the last return line, then you get a 5% increase in speed (I used random numbers from 0 to 100,000, changing the range to 0-100 million makes it 8% faster)