Make program of Marksheet in C language

#include<conio.h>

#include<stdio.h>

#include<string.h>

void main() {

 /*variable declaration part */

 int rl,s1,s2,s3,t;

 float per;

 char nm[25],div[10];

 clrscr();

 /*reading part */

 printf("Enter the Roll No : ");

 scanf("%d",&rl);

 printf("Enter Name : ");

 fflush(stdin);

 gets(nm);

 printf("Enter Three Subject Marks :\n");

 scanf("%d%d%d",&s1,&s2,&s3);

 /* processing part */

 t=s1+s2+s3;

 per=t/3.0;

 if(per>=75)

      strcpy(div,"Honour"); else if( per>=60)

    strcpy(div,"First"); else if( per>=48)

    strcpy(div,"Second"); else if (per>=36)

        strcpy(div,"Pass"); else

        strcpy(div,"Fail");

 /* display part */

 printf("\t\tUniversity of Rajasthan\n");

 printf("\n\n");

 printf("Roll No: %d \t Name : %s\n",rl,nm);

 printf("---------------------------------------------------\n");

 printf("Subject Max Min Obt.Marks\n");

 printf("---------------------------------------------------\n");

 printf("Hist 100 36 %d\n",s1);

 printf("socio. 100 36 %d\n",s2);

 printf("Hindi 100 36 %d\n",s3);

 printf("---------------------------------------------------\n");

 printf(" Total %d\n",t);

 printf("per %f\t\t\t div: %s \n",per,div);

 printf("---------------------------------------------------\n");

 getch();

}