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.
clear, through the ass but i did! wanna see other's solutions! Thank you!
only remove consecutive (adjacent) pairs
job logic in removing opposite pairs? I find them and delete them and result doesn’t pass the test, but I don’t want to see test cases !!! what's the matter then?