A-LevelComputer ScienceData Structures and AlgorithmsOct/Nov 2025Paper 2 Q817 Marks
A program is being developed to manage student book loans from a college library. Students may borrow up to five books at a time from the library. The programmer has defined a record type to define each loan. The record data items are: Data item Data type Comment StudentID STRING the unique ID of the student who has borrowed the book BookID STRING the unique ID of the book being borrowed OnLoan BOOLEAN TRUE if the book has not been returned The programmer has defined a global array Loan to store 5000 loan records. There are more elements in the array than books in the library. Unused elements have the StudentID set to an empty string. These may occur anywhere in the array. The programmer has defined the first program module: Module Description OKToBorrow() • called with a parameter of type STRING representing a StudentID • search the array for loan records for the specified student • output a suitable message to say whether the student may, or may not, borrow another book
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