C Arrays within Structure

#include <stdio.h>
int main()
{
struct student {
char name[30];
int rollno;
} stud;
printf ("Enter your RollNo : ");
scanf ("%d",&stud.rollno);
printf ("\nEnter your Name : ");
scanf ("%s", stud.name);
printf ("\nRollNo : %d\n Name : %s", stud.rollno, stud.name);
return 0;
}

#include <stdio.h>
int i;
struct student {
char name[30];
int rollno;
} stud[3];
for(i=0; i<3; i++)
{
printf ("\nEnter your RollNo : ");
scanf ("%d",&stud[i].rollno);
printf ("\nEnter your Name : ");
scanf ("%s", stud[i].name);
}
printf ("\nList of all records");
for (i=0; i<3; i++)
{
printf ("\nRollNo : %d\n Name : %s", stud[i].rollno, stud[i].name);
}
return 0;
}