Notes
This function is in beta test. Please help improve it in the issues
here.
Hints
Your answer may be identical to the JOJ answer in the first several lines.
However, you will still get Wrong Answer because the complete output may be longer and there might be errors in the future lines.
Please double check your code to solve this problem and try again.
Your Answer
Book Dummy Book 1 is borrowed. Book Dummy Book 1 is returned. Book Dummy Book 2 is borrowed. Book Dummy Book 2 is returned. Book Dummy Book 3 is borrowed. Book Dummy Book 3 is returned. Book Dummy Book 4 is borrowed. Book Dummy Book 4 is returned. Book Dummy Book 5 is borrowed. Book Dummy Book 5 is returned. Book Dummy Book 6 is borrowed. Book Dummy Book 6 is returned. Book Dummy Book 7 is borrowed. Book Dummy Book 7 is returned. Book Dummy Book 8 is borrowed. Book Dummy Book 8 is returned. Book Dummy Book 9 is borrowed. Book Dummy Book 9 is returned. Book Dummy Book 10 is borrowed. Book Dummy Book 10 is returned. The library is full. Invalid Book ID. Invalid Book ID. test14 passed.
JOJ Answer
Book Dummy Book 1 is borrowed. Book Dummy Book 1 is returned. Book Dummy Book 2 is borrowed. Book Dummy Book 2 is returned. Book Dummy Book 3 is borrowed. Book Dummy Book 3 is returned. Book Dummy Book 4 is borrowed. Book Dummy Book 4 is returned. Book Dummy Book 5 is borrowed. Book Dummy Book 5 is returned. Book Dummy Book 6 is borrowed. Book Dummy Book 6 is returned. Book Dummy Book 7 is borrowed. Book Dummy Book 7 is returned. Book Dummy Book 8 is borrowed. Book Dummy Book 8 is returned. Book Dummy Book 9 is borrowed. Book Dummy Book 9 is returned. Book Dummy Book 10 is borrowed. Book Dummy Book 10 is returned. The library is full. Invalid book ID. Invalid book ID. test14 passed.