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
Welcome to the library management system, please type your commands. > 5 added to the system. > Shuyu.Wu added to the system. > Jigang added to the system. > Success! 5 is borrowed by Jigang. > Fail! The book was borrowed by another customer. > Success! The following book has been returned: 2 5 > Success! 5 is borrowed by Shuyu.Wu. > VG101 added to the system. > Manuel added to the system. > introToElm added to the system. > Success! introToElm is borrowed by Manuel. > 2 5 borrowed 7 VG101 on shelf 9 introToElm borrowed > 1 Shuyu.Wu 3 Jigang 5 Manuel > Book borrowed by 5: 9 introToElm > The book ID already exists. > Success! introToAlgorithm is borrowed by Manuel. > Book borrowed by 5: 7 VG101 9 introToElm > Exit the system!
JOJ Answer
Welcome to the library management system, please type your commands. > 5 added to the system. > Shuyu.Wu added to the system. > Jigang added to the system. > Success! 5 is borrowed by Jigang. > Fail! The book was borrowed by another customer. > Success! The following book has been returned: 2 5 > Success! 5 is borrowed by Shuyu.Wu. > VG101 added to the system. > Manuel added to the system. > introToElm added to the system. > Success! introToElm is borrowed by Manuel. > 2 5 borrowed 7 VG101 on shelf 9 introToElm borrowed > 1 Shuyu.Wu 3 Jigang 5 Manuel > Book borrowed by Manuel: 9 introToElm > The book ID already exists. > Success! VG101 is borrowed by Manuel. > Book borrowed by Manuel: 7 VG101 9 introToElm > Exit the system!