How to prepare marks card in C – easy method

Posted on: September 29, 2024 in C programme ,

To create a marks card (report card) in C programming, you can structure the code to take input from the user, calculate the total and average of the marks, and display the result along with grades. Here’s an example of how you can do it:

c

#include <stdio.h>

int main() {
    // Declare variables
    int i, numSubjects;
    float marks[10], total = 0.0, average;
    char name[50];

    // Input student details
    printf("Enter student's name: ");
    gets(name);
    
    printf("Enter the number of subjects: ");
    scanf("%d", &numSubjects);

    // Input marks for each subject
    for (i = 0; i < numSubjects; i++) {
        printf("Enter marks for subject %d: ", i + 1);
        scanf("%f", &marks[i]);
        total += marks[i]; // Calculate total marks
    }

    // Calculate average
    average = total / numSubjects;

    // Output the marks card
    printf("\n------ Marks Card ------\n");
    printf("Student Name: %s\n", name);
    printf("Total Marks: %.2f\n", total);
    printf("Average Marks: %.2f\n", average);

    // Assign grade based on average
    printf("Grade: ");
    if (average >= 90)
        printf("A+\n");
    else if (average >= 80)
        printf("A\n");
    else if (average >= 70)
        printf("B\n");
    else if (average >= 60)
        printf("C\n");
    else if (average >= 50)
        printf("D\n");
    else
        printf("F\n");

    return 0;
}

Input: The program takes the student’s name, number of subjects, and marks for each subject.

Processing: It calculates the total and average marks.

Output: The student’s name, total marks, average, and the grade are displayed.

Grading system: You can adjust the grade boundaries based on the criteria you want.

Sample Output:

c

Enter student's name: RAGHU
Enter the number of subjects: 3
Enter marks for subject 1: 85
Enter marks for subject 2: 90
Enter marks for subject 3: 78

------ Marks Card ------
Student Name: RAGHU
Total Marks: 253.00
Average Marks: 84.33
Grade: A

In this program, we’re simulating a simple marks card (report card) generator in C. Here’s a breakdown of the key components:

Variable Declaration

c

int i, numSubjects;
float marks[10], total = 0.0, average;
char name[50];

i: Used as a loop counter.

numSubjects: Stores the number of subjects for which marks will be entered.

marks[10]: An array to hold the marks for each subject (with a maximum of 10 subjects).

total: To accumulate the total marks of all subjects.

average: To store the calculated average of the marks.

name[50]: To store the student’s name (up to 50 characters).

Taking Input

c

printf("Enter student's name: ");
gets(name);
printf("Enter the number of subjects: ");
scanf("%d", &numSubjects);

gets(name) reads the student’s name.

scanf("%d", &numSubjects) takes the number of subjects as input.

Loop for Entering Marks

c

for (i = 0; i < numSubjects; i++) {
    printf("Enter marks for subject %d: ", i + 1);
    scanf("%f", &marks[i]);
    total += marks[i]; // Add the entered mark to the total
}

We loop through numSubjects times to collect marks for each subject.

The marks are stored in the marks[] array.

The total marks are updated with each entry.

Calculating the Average

c

average = total / numSubjects;

The total marks are divided by the number of subjects to get the average marks.

Displaying the Marks Card

c

printf("\n------ Marks Card ------\n");
printf("Student Name: %s\n", name);
printf("Total Marks: %.2f\n", total);
printf("Average Marks: %.2f\n", average);

The student's name, total marks, and average marks are displayed using printf().

Grading System

c

printf("Grade: ");
if (average >= 90)
    printf("A+\n");
else if (average >= 80)
    printf("A\n");
else if (average >= 70)
    printf("B\n");
else if (average >= 60)
    printf("C\n");
else if (average >= 50)
    printf("D\n");
else
    printf("F\n");

Based on the average marks, the program assigns a grade:

A+ for averages 90 and above.
A for averages between 80 and 89.
B, C, D, and F are similarly assigned for other ranges.

How the program works:

Input: The user is prompted to enter the student's name, the number of subjects, and marks for each subject.

Processing: The program calculates the total and average marks from the input. Then, based on the average, it assigns a grade.

Output: Finally, the marks card is printed with the total marks, average, and the grade.

Note: This program provides a simple structure for building a marks card system, and it can be expanded to include more features like handling multiple students, input validation, etc.

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