#include <stdio.h>
struct student {
int rollno;
char name[20];
float marks;
}s1,s2,s3;

void main()
{ struct student s1={1,"tanishka",20.5};
struct student s2={2,"tanishka",29.9};
struct student s3=s1;

printf("%d\n%s\n%f",s1.rollno,s2.name,s3.marks);}