7. Create a structure student with rollno (int), name (char array), marks (int), grade (char). Create an array stu[5] of type student. Take the details of students like rollno, name, and marks from the user. Call UDF prepare_result() which will store the values for grade based on marks (if marks >=75 then ‘A’, Between 60 to 75 ‘B’, Between 50 to 60 ‘C’, Between 35 to 50 ‘D’ and Below 35 ‘F’ grade). Print the details of the students with Grade.

 

#include<stdio.h>

#include<conio.h>

struct student

{

    int rollno,marks;

    char name[30],grade;

}stu[5];

void prepare_result();

void main()

{

    int i;

    clrscr();

    for(i=0; i<5; i++)

    {

        printf("\nenter %d student roll no: ",i+1);

        scanf("%d",&stu[i].rollno);

        printf("enter %d student name: ",i+1);

        scanf("%s",&stu[i].name);

        printf("enter %d student marks: ",i+1);

        scanf("%d",&stu[i].marks);

    }

    prepare_result();

    getch();

}

void prepare_result()

{

    int i;

    for(i=0; i<5; i++)

    {

        if(stu[i].marks >= 75)

        {

            stu[i].grade = 'A';

        }

        else if(stu[i].marks >= 60)

        {

            stu[i].grade = 'B';

        }

        else if(stu[i].marks >= 50)

        {

            stu[i].grade = 'C';

        }

        else if(stu[i].marks >= 35)

        {

            stu[i].grade = 'D';

        }

        else

        {

            stu[i].grade = 'F';

        }

    }

    printf("\n\n         !!  result !!         ");

      printf("\n===============================");

    for(i=0; i<5; i++)

    {

        printf("\n%d   %10s  %d   %c",stu[i].rollno,stu[i].name,

                                      stu[i].marks,stu[i].grade);

    }

    printf("\n===============================");

}

/*      output:

enter 1 student rolll no: 1

enter 1 student name: vrushal

enter 1 student marks: 39

enter 2 student roll no: 2

enter 2 student name: smit

enter 2 student marks: 80

enter 3 student roll no: 3

enter 3 student name: vaibhav

enter 3 student marks: 49

enter 4 student roll no: 4

enter 4 student name: anuj

enter 4 student marks: 60

enter 5 student roll no: 5

enter 5 student name: arshad

enter 5 student marks: 80

         !!  result !!

===============================

1      vrushal  39   D

2         smit  80   A

3      vaibhav  49   D

4         anuj  60   B

5       arshad  80   A

===============================

*/