Suppose At The End Of The Semester, There Is A File "scores"

Suppose at the end of the semester, there is a file "scores.dat" recording scores each student has earned so far from closed lab assignments (CLA), open lab assignments (OLA), quizzes, exams, and final exam score

Write a program that reads student scores from a specified data file, calculates final letter grades based on total points, and computes the average and highest scores for each category (CLA, OLA, quizzes, exams, final exam). The program should repeatedly prompt the user for the filename until a valid file is provided, handle file reading errors gracefully, and produce output that includes each student's detailed information, as well as the overall averages and highest scores in each category. Follow the specified grading table to assign letter grades. Use a Student structure to hold relevant data, and avoid global variables by passing data as parameters to functions. The program must implement all specified functions, including reading data, calculating totals, determining grades, and printing results.

Paper For Above instruction

Implementing a comprehensive student grading analysis system based on data stored in a file is a vital task in educational data management. This program focuses on reading student scores from a user-specified file, processing this data, and producing meaningful summaries such as individual final grades, category averages, and highest scores. The core challenge involves robust file handling, data processing, and avoiding the use of global variables—all ensuring modular and reusable code.

To begin, the program prompts the user to input the name of the data file containing student records. It implements a loop to re-prompt if the filename is invalid or the file cannot be opened, providing a user-friendly way to handle errors. Once a valid file is opened, the system reads each student record into an array of Student structures. Each Student structure encompasses fields for student ID, scores for CLA, OLA, quizzes, exams, the final score, total points, and assigned letter grade.

Following data acquisition, the program calculates total points for each student based on their individual scores, adhering to the specific weighted contributions for each component, which could typically be defined within the calculateTotalPoints function. Then, it determines the final letter grade for each student based on the total points, aligning with the provided grading table. This mapping ensures each student's grade classification accurately reflects their overall performance.

Simultaneously, the program computes the average and highest scores for each category—CLA, OLA, quizzes, exams, and the final exam—by iterating through the array of students. Separate functions, calculateAverage and calculateHighest, perform these calculations efficiently, returning an array of averages and an array of maximum scores, respectively.

Once all calculations are complete, the program outputs a detailed report. This includes each student's ID, category scores, total points, and final grade, along with overall statistics such as the category averages and maximum scores. The printData function manages formatted output, ensuring clarity and readability.

Throughout the implementation, no global variables are permitted, emphasizing the importance of passing all necessary data structures and variables as function parameters. This approach enhances program modularity and encapsulation, aligning with best programming practices.

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