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.
how familiar is it to me..
also i have a problem with a random tests.
i got it that i should return 0 in this cases but my "if-expression" leads me to fail
my english is so weak..
i can't imagine how can i check this input "int[][]{}".
i passed through 4/5 tests, pls help me
shouldHandleNullOrEmptyIntervals
Test Failed
What should I do?
(java)
thx a lot for a hint