Write Ac Program to Calculate The GPA of N Students

How to Calculate GPA

The GPA is calculated by assigning numerical values to letter grades and then averaging these values across all courses. The standard grading scale is:

• A = 4.0
• B = 3.0
• C = 2.0
• D = 1.0
• F = 0.0

The basic formula for calculating GPA is:

For multiple students, you'll need to process each student's course data separately and then calculate their individual GPAs.

GPA Calculation Formula

The complete formula for calculating GPA involves these steps:

1. For each course, multiply the grade point by the credit hours
2. Sum all these values to get total grade points
3. Sum all credit hours to get total credit hours
4. Divide total grade points by total credit hours

This formula accounts for the varying credit weights of different courses.

Programming Example

Here's a complete program example in Python that calculates GPA for N students:

def calculate_gpa():
    num_students = int(input("Enter number of students: "))
    students = []

    for i in range(num_students):
        print(f"\nStudent {i+1}:")
        num_courses = int(input("Enter number of courses: "))
        total_points = 0
        total_credits = 0

        for j in range(num_courses):
            grade = input(f"Enter grade for course {j+1} (A, B, C, D, F): ").upper()
            credits = float(input(f"Enter credit hours for course {j+1}: "))

            # Convert letter grade to point value
            grade_points = {
                'A': 4.0,
                'B': 3.0,
                'C': 2.0,
                'D': 1.0,
                'F': 0.0
            }.get(grade, 0.0)

            total_points += grade_points * credits
            total_credits += credits

        gpa = total_points / total_credits if total_credits > 0 else 0
        students.append((i+1, gpa))

    print("\nGPA Results:")
    for student_id, gpa in students:
        print(f"Student {student_id}: GPA = {gpa:.2f}")

calculate_gpa()

This program:

1. Asks for the number of students
2. For each student, collects course information
3. Converts letter grades to numerical values
4. Calculates the GPA using the formula
5. Displays the results for all students