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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 really enjoyed this problem, but I think it should be a kyu 5.
Had the same problem, even after copy/pasting one of the accepted results. Problem with the tests?
Should be more explicity about ranking, since there is the sql ranking...but there's also a column named "rank". Might be best to actually drop the "rank" column from the sample table since it's not used.
Should make the description more clear. Refers to list, but passes an array in JavaScript. Would be nice to see an example in the description.
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This comment is hidden because it contains spoiler information about the solution
This comment is hidden because it contains spoiler information about the solution
I noticed there weren't a lot of tree problems in the easier kyu levels so I made a simple problem that would make for a (hopefully) good introduction to solving tree problems. I based my code and examples around this exellent problem: https://www.codewars.com/kata/binary-tree-compare
This is my first attempt at a Kata, thanks for your patience.
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