Loading collection data...
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.
You didn't mention which language. But for the Lua translation, the issue with 0-padding has been corrected. The expected value should now be '02FF8C'. Other languages may still exhibit the issue.
I know this is 7 months ago but - if you're trying to change characters in a string, remember strings are immutable. Meaning you need to reinitialise it to have the edits take affect. I made the same mistake.
Are you sure you're using them correctly?
U need to sort elements in array before you return result.