Mark list analysis using structures in C

Write a program in C for mark list analysis using structure

#include <stdio.h>

#include <conio.h>

#include <string.h>

void main()

{

            struct stud

            {

                        int rno;

                        char name[15];

                        int marks[5];

                        int total;

                        float avg;

                        char class[15];

            }

            st[10],temp;

            int i,n,j;

            clrscr();

            printf(“\n enter\n”);

            scanf(“%d”,&n);

            for(i=1;i<=n;i++)

            {

                        printf(“\n enter the roll no..”);

                        scanf(“%d”,&st[i].rno);

                        printf(“name...\n”);

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

                        printf(“enter three marks..”);

                        for(j=1;j<=3;j++)

                                    scanf(“%d”,&st[i].marks[j]);

            }

            for(i=1;i<=n;i++)

            {

                        st[i].total=0;

                        for(j=1;j<=3;j++)

                        {

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

                        }

                        st[i].avg=st[i].total/30;

                        if(st[i].avg>=75)

                                    strcpy(st[i].grade,”distinction”);

                        elseif(st[i].avg>=60)

                                    strcpy(st[i].grade,”first”);

                        elseif(st[i].avg>=50)

                                    strcpy(st[i].grade,”second”);

                        else

                                    strcpy(st[i].grade,”fail”);

            }

            for(i=1;i<=n;i++)

            {

                        for(j=j+1;j<=n;j++)

                        {          

                                    if(st[i].total<st[j].total)

                                    {

                                                temp=st[i];

                                                st[i]=st[j];

                                                st[j]=temp;

                                    }

                        }

            }

            printf(“\n the student details in rankwise\n”);

            for(i=1;i<=n;i++)

            {

                        printf(“\n\n roll no:%d”,st[i].rno);

                        printf(“\n name :%s”,st[i].name);

                        printf(“\n marks in three subjects”);

                        for(j=1;j<=3;j++)

                        {

                                    printf(“\n %d,st[i].marks[j]);

                        }

                        printf (“\n total: %d”, st[i].total);

                        printf(“\n average:%f”,st[i].avg);

                        printf(“\n grade:%s”,st[i].grade);

            }

            getch();

}