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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.
I see what i have done wrong now i fixed it sice i only check for duplicate row and column
print(board)Python
Five tested are passed except the last one
Language? Print the input.
I did what it need to require but the last test is fail and i can't even see the 2D array that is given
Why it return -1 instead of 5
because i run my code in IDLE python 3.7.2 it give me 5