#include <stdio.h>
struct student{
    int rollno;
    char name[50];
    float marks;
}
int main(){
    int rollno
    struct student s1=(35,"ravi",39.5);
    struct student s2=(35,"ri",23.5);
    printf("rollno:%d\n",s1.rollno);
    printf("name:%s\n",s1.rollno);
    printf("marks:%.2f\n",s1.rollno);
    printf("rollno:%d\n",s2.rollno);
    printf("name:%s\n",s2.name);
    printf("marks:%.2f\n",s2.marks);
    return 0;
}