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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.
Very efficient! Good work.
See this: https://stackoverflow.com/questions/14678132/python-hexadecimal
{:02X}
i understand : and X , but how does 02 put the extra 0?
Nice solution!
引入第二个函数,太聪明了
Only half-duplicate, really. That one also has you convert to roman numerals. Though there is a separate kata for that as well.
Hello,
This kata is duplicit with: http://www.codewars.com/kata/51b66044bce5799a7f000003