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.
Try to write in down and move variable around the equation. I hope this will help.
Not an issue, a question.
I bet you forgot to import the Stack at the beginning of your code...?
Asking for help is not an issue, sorry.