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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.
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Not an issue
That's because you hit stack overflow error (obviously because you tried to implement the factorial recursively), and in CW the C# test framework incorrectly reports all stack overflows as NPE.
A known CW issue, and not kata issue per se.
I have same problem C#
This comment is hidden because it contains spoiler information about the solution
I see where you're stuggling.
For example, you're a person with a very strange name, ok? Apperently, your parent named you
Sabuid
... I know, this is indeed a very strange name. Now you should get your own userID. This will beuidsabuid
. You see what I did there? For sure, this userID contains two times the stringuid
, but the second one is a part of your name. Therefore, only the first occurence should be removed!The testcase you're looking for has
uidMultipleuid
as an input and expectsmultipleuid
as an output.Please mark this issue as resolved if it's been clarified. Thanks
Which language?