C Program to Read and Print details of 50 Students using Structure

C Program to read, print name and other details of 50 students ?

Problem Statement :

The annual examination is conducted for 50 students for three subjects. Write a program to read the data and determine the following:

(a) Total marks obtained by each student.
(b) The highest marks in each subject and the Roll No. of the student who secured it.
(c) The student who obtained the highest total marks.

C Program : Print Details of 50 students using Structure

#include<stdio.h>
#define SIZE 50
struct student {
   char name[30];
   int rollno;
   int sub[3];
};
void main() {
   int i, j, max, count, total, n, a[SIZE], ni;
   struct student st[SIZE];
   clrscr();
   printf("Enter how many students: ");
   scanf("%d", &n);
   /* for loop to read the names and roll numbers*/
   for (i = 0; i < n; i++) {
      printf("\nEnter name and roll number for student %d : ", i);
      scanf("%s", &st[i].name);
      scanf("%d", &st[i].rollno);
   }
   /* for loop to read ith student's jth subject*/
   for (i = 0; i < n; i++) {
      for (j = 0; j <= 2; j++) {
         printf("\nEnter marks of student %d for subject %d : ", i, j);
         scanf("%d", &st[i].sub[j]);
      }
   }
   /* (i) for loop to calculate total marks obtained by each student*/
   for (i = 0; i < n; i++) {
      total = 0;
      for (j = 0; j < 3; j++) {
         total = total + st[i].sub[j];
      }
      printf("\nTotal marks obtained by student %s are %dn", st[i].name,total);
      a[i] = total;
   }
   /* (ii) for loop to list out the student's roll numbers who
    have secured the highest marks in each subject */
   /* roll number who secured the highest marks */
   for (j = 0; j < 3; j++) {
      max = 0;
      for (i = 0; i < n; i++) {
         if (max < st[i].sub[j]) {
            max = st[i].sub[j];
            ni = i;
         }
      }
      printf("\nStudent %s got maximum marks = %d in Subject : %d",st[ni].name, max, j);
   }
   max = 0;
   for (i = 0; i < n; i++) {
      if (max < a[i]) {
         max = a[i];
         ni = i;
      }
   }
   printf("\n%s obtained the total highest marks.", st[ni].name);
   getch();
}

#include<stdio.h>

#define SIZE 50

struct student {

char name[30];

int rollno;

int sub[3];

};

void main() {

int i, j, max, count, total, n, a[SIZE], ni;

struct student st[SIZE];

clrscr();

printf("Enter how many students: ");

scanf("%d", &n);

/* for loop to read the names and roll numbers*/

for (i = 0; i < n; i++) {

printf("\nEnter name and roll number for student %d : ", i);

scanf("%s", &st[i].name);

scanf("%d", &st[i].rollno);

}

/* for loop to read ith student's jth subject*/

for (i = 0; i < n; i++) {

for (j = 0; j <= 2; j++) {

printf("\nEnter marks of student %d for subject %d : ", i, j);

scanf("%d", &st[i].sub[j]);

}

/* (i) for loop to calculate total marks obtained by each student*/

for (i = 0; i < n; i++) {

total = 0;

for (j = 0; j < 3; j++) {

total = total + st[i].sub[j];

}

printf("\nTotal marks obtained by student %s are %dn", st[i].name,total);

a[i] = total;

}

/* (ii) for loop to list out the student's roll numbers who

have secured the highest marks in each subject */

/* roll number who secured the highest marks */

for (j = 0; j < 3; j++) {

max = 0;

for (i = 0; i < n; i++) {

if (max < st[i].sub[j]) {

max = st[i].sub[j];

ni = i;

}

printf("\nStudent %s got maximum marks = %d in Subject : %d",st[ni].name, max, j);

}

max = 0;

for (i = 0; i < n; i++) {

if (max < a[i]) {

max = a[i];

ni = i;

}

printf("\n%s obtained the total highest marks.", st[ni].name);

getch();

}

Output :

Enter how many students: 2
Enter name and roll number for student 0 : Pritesh 1
Enter name and roll number for student 1 : Suraj 2
Enter marks of student 0 for subject 0 : 90
Enter marks of student 0 for subject 1 : 89
Enter marks of student 0 for subject 2 : 78
Enter marks of student 1 for subject 0 : 67
Enter marks of student 1 for subject 1 : 88
Enter marks of student 1 for subject 2 : 99
Total marks obtained by student Pritesh are 257
Total marks obtained by student Suraj are 254
Student Pritesh got maximum marks = 90 in Subject : 0
Student Pritesh got maximum marks = 89 in Subject : 1
Student Suraj got maximum marks = 99 in Subject : 2
Pritesh obtained the total highest marks.

Enter how many students: 2

Enter name and roll number for student 0 : Pritesh 1

Enter name and roll number for student 1 : Suraj 2

Enter marks of student 0 for subject 0 : 90

Enter marks of student 0 for subject 1 : 89

Enter marks of student 0 for subject 2 : 78

Enter marks of student 1 for subject 0 : 67

Enter marks of student 1 for subject 1 : 88

Enter marks of student 1 for subject 2 : 99

Total marks obtained by student Pritesh are 257

Total marks obtained by student Suraj are 254

Student Pritesh got maximum marks = 90 in Subject : 0

Student Pritesh got maximum marks = 89 in Subject : 1

Student Suraj got maximum marks = 99 in Subject : 2

Pritesh obtained the total highest marks.

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