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, the main problem you meet now is Runtime Error. And the exit code of your program is -11, which should be 0.
Please double check your code to solve this problem and try again.
Your Answer
Welcome to the library management system, please type your commands. > IntroToDataStructure added to the system. > DiscreteMath added to the system. > Runze.Cai added to the system. > Runze.Xue added to the system. > Mathematical-AnalysisI added to the system. > Success! Mathematical-AnalysisI is borrowed by Runze.Xue. > Fail! The book was borrowed by another customer. > Fail! The book was borrowed by another customer. > Fail! The book was borrowed by another customer. > 186 Mathematical-AnalysisI borrowed > 186 Mathematical-AnalysisI borrowed > Success! DiscreteMath is borrowed by Runze.Cai. > 203 DiscreteMath borrowed > Success! The following book has been returned: 203 DiscreteMath > 203 DiscreteMath on shelf > Unknown command! > Unknown command! > Unknown command! > Unknown command!
JOJ Answer
Welcome to the library management system, please type your commands. > IntroToDataStructure added to the system. > DiscreteMath added to the system. > Runze.Cai added to the system. > Runze.Xue added to the system. > Mathematical-AnalysisI added to the system. > Success! Mathematical-AnalysisI is borrowed by Runze.Xue. > Fail! The book was borrowed by another customer. > Fail! The book was borrowed by another customer. > Fail! The book was borrowed by another customer. > 186 Mathematical-AnalysisI borrowed > 186 Mathematical-AnalysisI borrowed > Success! DiscreteMath is borrowed by Runze.Cai. > 203 DiscreteMath borrowed > Success! The following book has been returned: 203 DiscreteMath > 203 DiscreteMath on shelf > Unknown command! > Exit the system!