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.
Because the instructions ask for the aliases being age_min and age_max
why can't we use min_age and max_age for the alias?
This comment is hidden because it contains spoiler information about the solution
This problem requires you to make a reference to the string somewhere. If you just return the length of the string you get a null reference.
You need to test for the case when n is the divisor and 2n+1 is the bound and 2n is the solution. I passed the test using a for loop but I would have failed this test so I got a false positive.