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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.
I like your solution to show the maze with Strings. I was thinking about something similar, but didnt found any good signs to show the different walls of a field.
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I'm a bit confused. I'm not meant to calculate the factorial. So I need to get the trailing zeros of the factorial (that I'm not meant to calculate) by some kind of mathematical stunt? Every solution I have would calculate the factorial in some way, to get the trailing zeros.