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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.
wow, have no idea c++ can do this
sequence is may more diff to type than t, lol
Math do help
sorry
but i found there is a littel mistake here
it doesn't work for "11+1??=111", it should be 0 but it gives -1
something wrong about the "??" part