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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.
En, You can see the question, the "o" is 0 and "k" is 1, they seperated by "?" every item is a Eight-bit binary number(ingore ",").
so what i need is to caculate the binary number of each number. because i loop from left to right so i need power 2 in every add action.
finaly, i use
unichrfunction get the liter that the binary number matchs