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. > This added to the system. > Unknown command! > Unknown command! > > Unknown command! > Unknown command! > Unknown command! > Unknown command! > Vg101. added to the system. > Unknown command! > Unknown command! > Unknown command! > Unknown command! > Unknown command! > Unknown command! > Unknown command! > Jigang added to the system. > Unknown command! > Success! Vg101. is borrowed by Jigang. > 1 This on shelf > Unknown command! > Unknown command! > > Unknown command! > Unknown command! > Unknown command! > Unknown command! > 2 Vg101. borrowed > Unknown command! > Unknown command! > Unknown command! > Unknown command! > Unknown command! > Unknown command! > Unknown command! > Exit the system!
JOJ Answer
Welcome to the library management system, please type your commands. > This testcase tests checkb2 if books have complicated names. added to the system. > Vg101. Introduction to Computer and Programming (Fall 2020) added to the system. > Jigang Wu added to the system. > Success! Vg101. Introduction to Computer and Programming (Fall 2020) is borrowed by Jigang Wu. > 1 This testcase tests checkb2 if books have complicated names. on shelf > 2 Vg101. Introduction to Computer and Programming (Fall 2020) borrowed > Exit the system!