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.
why do you feel its inefficient?
Thanks, i've completed it now. Learnt something new today!
This comment is hidden because it contains spoiler information about the solution
This comment is hidden because it contains spoiler information about the solution
JS
Some random tests have the expected result being -1 when both arrays are clearly not empty. Can someone else confirm this? I'm pretty sure my code is correct.