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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.
Can anyone show me how this code works?
idk what [\[\], ] stands for
remove the words in all string which are not in s1+s2
brilliant...
impressive
quite confused. Is it regular expression?
what does reduce(1,(a,b)) mean?
cool.
Brilliant solution
I use String instead of int to count the number of d and that makes the program much more complicated
why? is it because it doesn't reflect any meanings?
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