Loading collection data...
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.
This comment is hidden because it contains spoiler information about the solution
I agree, I initially set the estimated rank at 7 kyu but it was approved as 8 kyu. You can gauge difficulty by looking at the rank assessment stats on the details page. The average rank given was 7 kyu.
Oops, no, it was my mistake. In some of the tests I had put the actual and expected solutions the wrong way around - thanks for pointing this out!
Your array elements are strings, not numbers. Convert them first.
Please share code and mark as having spoiler content