Write a C program using structure student which allows users to input details for three students including their names, roll numbers, and marks in 5 subjects. Use a function calculateTotalMarks(struct Student) which calculates the total marks and percentage for each student and displays the information. Each subject test is for 10 marks. Total marks = 50. Percentage = (marks obtained/total marks)*100.
Question
Write a C program using structure student which allows users to input details for three students including their names, roll numbers, and marks in 5 subjects. Use a function calculateTotalMarks(struct Student) which calculates the total marks and percentage for each student and displays the information. Each subject test is for 10 marks. Total marks = 50. Percentage = (marks obtained/total marks)*100.
Solution
Sure, here is a simple C program that meets your requirements:
#include <stdio.h>
struct Student {
char name[50];
int roll;
int marks[5];
int total;
float percentage;
};
void calculateTotalMarks(struct Student *student) {
student->total = 0;
for(int i=0; i<5; i++) {
student->total += student->marks[i];
}
student->percentage = (float)student->total / 50 * 100;
}
void display(struct Student student) {
printf("Name: %s\n", student.name);
printf("Roll: %d\n", student.roll);
printf("Total Marks: %d\n", student.total);
printf("Percentage: %.2f\n", student.percentage);
}
int main() {
struct Student students[3];
for(int i=0; i<3; i++) {
printf("Enter details for student %d:\n", i+1);
printf("Name: ");
scanf("%s", students[i].name);
printf("Roll: ");
scanf("%d", &students[i].roll);
printf("Marks in 5 subjects: ");
for(int j=0; j<5; j++) {
scanf("%d", &students[i].marks[j]);
}
calculateTotalMarks(&students[i]);
}
for(int i=0; i<3; i++) {
printf("\nDetails for student %d:\n", i+1);
display(students[i]);
}
return 0;
}
This program first defines a structure Student to hold the details of a student. It then defines a function calculateTotalMarks to calculate the total marks and percentage for a student. The display function is used to print the details of a student.
In the main function, it creates an array of Student structures to hold the details of three students. It then uses a loop to get the details of each student from the user, calculate the total marks and percentage, and display the details.
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