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.
Did you learn SQL ? :)
This comment is hidden because it contains spoiler information about the solution
Done.
@hyperion it is my solution that is the hack. I took advantage of the Kata requirement so I say 2 phone numbers are "equal" if they have the same type only. Clearly that is nonsense in the real world of phone numbers, but was sufficient for a quick solution here ;-)
It is a dirty hack because objects are not really equal and nobody can use it this way because of possible bugs that very hard to find.
Modified. If it fits you, could you mark the issue as resolved.
Thank you!
I corrected the description in the case of a single element.
Fixed typo.
The numbers are transmitted sequentially.