Program to list the names of students who have scored more
than 60% of the total marks in three subjects using structure variables.
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#include<stdio.h>
#include<conio.h>
struct student
{
char name[30];
char usn[10];
int sub1; int sub2; int sub3;
int total; float percent;
};
main( )
{
int i, n;
struct student s[20]; //Declaring an array of
type 'student'
printf("\t\t enter the number of
students:");
scanf("%d", &n);
printf("%d", n);
for(i = 0; i < n, ++i)
{
getchar();
printf("\n\n enter the student
name:");
scanf("%d", &s[i].name ); //Read
into name of s[i]
gets(s[i].name);
puts(s[i].name);
printf("\n enter the student
university seat number:");
gets(s[i].usn);
puts(s[i].usn);
printf("\n enter the marks of
subject1:");
scanf("%d", &s[i].sub1);
printf("%d", s[i].sub1);
printf("\n enter the marks of
subject2:");
scanf("% d", &s[i].sub2);
printf(" %d", s[i].sub2);
printf("\n enter the marks of
subject3:");
scanf("%d",&s[i] sub3 );
printf ("% d",s[i].sub3 );
}
printf(" \n\n\t\t list of students
name, university seat number and percentage \n\t\t who have scored more than
60% marks\n"); printf("\n\t\t ");
printf("\n\t\t name \t\t\t roll
number \t percentage\n");
printf(" \t\t__ \n");
/* Accessing members of each element in
the array 's' and processing them*/
for (i = 0; i < n, ++i)
{
s[i].total =
s[i].sub1 + s[i].sub2 + s[i].sub3;
s[i].percent =
s[i].total/3.0;
if (s[i].percent
>= 60)
printf("\t\t
%-20s\t %s\t\t %.2f\n", s[i].name, s[i].usn, s[i].percent);
}
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Each element in the array now is a
structure with its own name, usn, sub1, sub2, sub3, total and percent
Reading value into the name member of' ith
element in the array 's'
All operations can be performed on the
members of the structure as if they are individual variables
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Output:
enter the number of students: 1
enter the student name: sai
enter the student university seat
number: 001
enter the marks of subject1: 50
enter the marks of subject2: 1482
enter the marks of subject3: 75
list of students name, university seat
number and percentage who have scored more than 60% marks
name roll
number percentage
sat 001
535.67
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