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.
impresive man
why 2 ?
Use markdown tags to format your code or it's not usable; see there: https://docs.codewars.com/training/troubleshooting/#post-discourse
it's true
I used the map and lambda too, but you need to wrap them with list() otherwise it's just a map rather than a list.