Write a program to input some record of student containing (Roll,Name,City , Marks of different subject) and print record of topper student?

Q : Write a program to input some record of student containing (Roll,Name,City , Marks of different subject) and print record of topper student?

Solution : 

/*  **************************************

         Girfa : Student Help

         Search Maximum obtain marks record from structure

         Programmer Name : Chandani Gupta

         for more program visit : http://girfahelp.blogspot.in/p/c-language-assignment.html

    ****************************************

*/

#include<stdio.h>

#include<conio.h>

struct stu

{

    int roll;

    char nm[20];

    char city[30];

    int  marks[3];

};

void main()

{

    struct stu ob[3];

    int i,j,sum=0,tmp,index=0;

    clrscr();

    for(i=0;i<3;i++)

    {

         printf("%d record entry",i+1);

         printf("\nenter roll>> ");

         scanf("%d",&ob[i].roll);

         printf("enter name>> ");

         fflush(stdin);

         gets(ob[i].nm);

         printf("enter city>> ");

         fflush(stdin);

         gets(ob[i].city);

         for(j=0;j<3;j++)

         {

             printf("enter %d'st marks>> ",j+1);

             scanf("%d", & ob[i].marks[j]);

         }

    }/*input complete*/

    /* Calculate Sum of first record */

    for(i=0;i<3;i++)

         sum=sum+ob[0].marks[i];

    /* Check maximum marks from remain records */

    for(i=1;i<3;i++)

    {

         tmp=0;

         for(j=0;j<3;j++)

             tmp+=ob[i].marks[j];

         if(tmp>sum)

         {

             sum=tmp;

             index=i;

         }

    }

    printf("\n\nRecord of Topper Student\n\n");

    printf("\n\troll\t%d",ob[index].roll);

    printf("\n\tname\t%s",ob[index].nm);

    printf("\n\tcity\t%s",ob[index].city);

    for(i=0;i<3;i++)

         printf("\n\tMarks %d=%d",i+1,ob[index].marks[i]);

    printf("\n\tTotal=%d",sum);

    getch();

}

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