Write an interactive program to generate progress reports for the students of class XII (Science group). Assumptions can be made wherever necessary.

#include<stdio.h>
#include<conio.h>

#define STU_NUM 3
#define NAME_LEN 100
#define SUB_NUM 3

struct student
{
    int id;
    char name[NAME_LEN];
    char group;
    int subject_marks[SUB_NUM];
    int total;
    int percentage;
};

void main()
{
    int i, j, k, l, total, percentage;
    struct student stud[STU_NUM];
    clrscr();

    //Get the required data from user.
    for(i=0; i<STU_NUM; i++)
    {
        j = i+1;

        printf("\n\nEnter the ID of student %d: ",j);
        scanf("%d",&stud[i].id);
        fflush(stdin);
       
        printf("\nEnter the name of student %d: ",j);
        gets(stud[i].name);
        fflush(stdin);
       
        printf("\nEnter the group selected by student %d (A/B): ",j);
        scanf("%c",&stud[i].group);
        fflush(stdin);
       
        for(k=0; k<SUB_NUM; k++)
        {
            l = k+1;
            printf("\nEnter the marks of subject %d for student %d: ",l,j);
            scanf("%d",&stud[i].subject_marks[k]);
        }
        fflush(stdin);
    }
   
    //Calculate total & percentage of the student.
    for(i=0; i<STU_NUM; i++)
    {
        total = 0;
        percentage = 0;
        for(k=0; k<SUB_NUM; k++)
        {
            total = total + stud[i].subject_marks[k];
        }
        percentage = total / SUB_NUM;
       
        stud[i].total = total;
        stud[i].percentage = percentage;
    }
   
    //Display the progress report of the students.
    clrscr();
    for(i=0; i<STU_NUM; i++)
    {
        printf("ID: %d \t Name: %s \t Group: %c \n", stud[i].id, stud[i].name, stud[i].group);
       
        for(k=0; k<SUB_NUM; k++)
        {
            l = k+1;
            printf("Subject %d: %d / 100 \n", l, stud[i].subject_marks[k]);
        }
        printf("Total: %d \t Percentage: %d \n", stud[i].total, stud[i].percentage);
        printf("\n----------------------------------------------------------------------\n\n");
    }

    getch();
}