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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.
Some people might see this as a joke solution, but it's honestly one of the most clear and efficient.
Just removed an unused import :)
I'm talking about C++
The task SPECIFICALLY says "The input string can be assumed to contain only alphabets (both uppercase and lowercase) and numeric digits." yet one of the tests contain non-alphabeetical or numerical characters such as (, [, {, }. ]. ).
Change the description.