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.
Doesn't work for examples like: 266.155.132.212 or 02.55.132.212
what does "(?<!0)" mean?
your sum is wrong.if i == 49 then sum = 2451,but your sum is 2402.
i know, it was very late when i did this :)
this answer is funny~
what if n = int.MaxValue :)