1) File Opening Simplification: Combined checks for file and tempFile, with perror for clearer error reporting.
2) Reduced clearInputBuffer Calls: Only called when an invalid input is detected.
3) Efficient Decision Handling: If confirm is invalid, defaults to keeping the booking.
4) Direct File Replacement: Renaming temp.dat as FILENAME immediately replaces the old file after processing, ensuring efficiency.
1) File Opening Simplification: Combined checks for file and tempFile, with perror for clearer error reporting. 2) Reduced clearInputBuffer Calls: Only called when an invalid input is detected. 3) Efficient Decision Handling: If confirm is invalid, defaults to keeping the booking. 4) Direct File Replacement: Renaming temp.dat as FILENAME immediately replaces the old file after processing, ensuring efficiency.