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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.
A little modification is done. I think it is quite understandable now. Let me know what part is confusing to you?
Thanks for the feedback. But please be more accurate and thoughtful when you want to contribute and report an issue.
"poorly writen" or "poorly written" don't help at all.
I suppose the variable z is the number of people in the bus, since z=x-y. It is always more than zero. You have an infinite while loop then.
It is still pretty bad
poorly writen :(