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.
Seems like that there is an issue with the testcases?
Looks like the test cases are wrong? Also, the parameter of the function seems to be wrong uint
What a genius
Description is not clear enough what is a valid phone number?
Interesting approach but too error-prone and unattractive to read