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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.
When performing
+operation and the current number is undefined should I put0or1on stack?Also description says
All stacks have an original value of 0. Does that mean stacks are empty or do they include0?When the current stack is
Aand operator<appears should I switch to stackCor do nothing?