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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 was very happy with a lambda until I saw this one. I don't know if it is any good, but it's clever.
Please, help. I don´t know if its a language barrier or if I'm not that familiaryzed with this kind of problem, but I can't understand what kind of data I'm recieving a what I have to find.
Got it. The name of the funftion already on the 'solution' was sumIntervals and o the test was sum_of_intervals. Sorry if I wastes anyones time with this.
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