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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.
Edit: Sorry. Just saw your EDIT.
Im getting them all right in the tests (51 tests) and then I time-out. I think you got that one wrong, Chrono79. That didn't work for me. I think the slolution is 5. Notice in the description examples common numbers are always in equal amounts. Shouldn't be that way. Should be some variation for clarification. Ive wasted too much time on 1 kata, so Im skipping and moving on to the next one.
Edited my previous answer, it is 5.
Thanks, Chrono79. My understanding was completely wrong. lol
@Chrono79 Uh, I think the comment author is correct. It's 5. You can see from the examples in the description on how to handle duplicates. You still have to handle how many times does the item appears in all three of the arrays.
The answer is 5.
Want to make sure I understand instructions correctly.
Is 5 the solution for below?
java translation waiting for revision.