Student Structure in C: Input, display, and average marks calculation

Last update on August 01 2025 13:03:00 (UTC/GMT +8 hours)

1. Student Structure Operations

Create a structure called "Student" with members name, age, and total marks. Write a C program to input data for two students, display their information, and find the average of total marks.

Sample Solution:

C Code:

#include <stdio.h> 

// Define the structure "Student"
struct Student {
    char name[50];
    int age;
    float totalMarks;
};

int main() {
    // Declare variables to store information for two students
    struct Student student1, student2;

    // Input data for the first student
    printf("Input details for Student 1:\n");
    printf("Name: ");
    scanf("%s", student1.name);  // Assuming names do not contain spaces
    printf("Age: ");
    scanf("%d", &student1.age);
    printf("Total Marks: ");
    scanf("%f", &student1.totalMarks);

    // Input data for the second student
    printf("\nInput details for Student 2:\n");
    printf("Name: ");
    scanf("%s", student2.name);  // Assuming names do not contain spaces
    printf("Age: ");
    scanf("%d", &student2.age);
    printf("Total Marks: ");
    scanf("%f", &student2.totalMarks);

    // Display information for both students
    printf("\nStudent 1 Information:\n");
    printf("Name: %s\n", student1.name);
    printf("Age: %d\n", student1.age);
    printf("Total Marks: %.2f\n", student1.totalMarks);

    printf("\nStudent 2 Information:\n");
    printf("Name: %s\n", student2.name);
    printf("Age: %d\n", student2.age);
    printf("Total Marks: %.2f\n", student2.totalMarks);

    // Calculate and display the average total marks
    float averageMarks = (student1.totalMarks + student2.totalMarks) / 2;
    printf("\nAverage Total Marks: %.2f\n", averageMarks);

    return 0;
}

Output:

Input details for Student 1:
Name: Climacus
Age: 14
Total Marks: 189

Input details for Student 2:
Name: Meredith
Age: 14
Total Marks: 192

Student 1 Information:
Name: Climacus
Age: 14
Total Marks: 189.00

Student 2 Information:
Name: Meredith
Age: 14
Total Marks: 192.00

Average Total Marks: 190.50

Flowchart:

For more Practice: Solve these Related Problems:

Write a C program to input details for three students, sort them by total marks, and display the sorted list along with the average marks.
Write a C program to input data for two students and then update the student with lower marks by adding bonus points before displaying their information.
Write a C program to store student details in an array of structures, then compute and display the highest, lowest, and average total marks.
Write a C program to input a student’s data and display the information with the student’s name reversed (i.e. reverse the characters in the name).

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