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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.
no global variables?
It is better to add examples to the description
Example should be added. Description should be made more clear.
it's better to add one more test case, where r = 1, but a is not 1
if r = 1, and a is not 1 your solution wouldn't work
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It's better to add tests for this kata
Ideas with the random text should be more polished. For me was unclear why some time in the variable "word" I obtain string with the "." at the end, even more unclear was what result should I return in this case
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