c++ code for bookshop system include this 5 items

1 2 3 3 4 5 Criterion Functions Declaration & Call Variables , Struct &Arrays Declaration Reading from / Writing to file Program Structure Error Handling Working Demo, Evaluation, Delivery , & Justification Description Your functions should show how it helped you to develop more reusable and readable program. Each function should serve correctly to achieve your system goals. You should use functions overloading and extra methods to achieve your goal. Effectively make use Of arrays including array Of struct in your program(s). This include both local and global variables. Those arrays should be easily browsed and searched. Successful file access for reading and writing Comprehensible, well-documented and well-structured programs. Organization of code delivery and quality of code. Expected users' errors should be handled well through: Using a proper in-depth analysis of all users' input and limiting all users' invalid entry. Handlin all ex ected run-time errors. Successful live demonstration Of your working application. Clear separation Of functions; maintainable code; validation Evaluation Of the effectiveness Of your approach. Confident, well-rehearsed and professional; rational explanation for your chosen stories Justification of your approach, design, implementation and testing.