Program to demonstrate pointer to structure

#include<stdio.h>

main()

{

          struct student

          {

                   int roll;

                   char name[20];

                   int age;

                   char class[8];

          };        

          struct student s,*ptr;

          ptr=&s;

          printf("Enter the student record\n");

          printf("Roll no. :");

          scanf("%d",&ptr->roll);

          printf("Name :");

          scanf("%s",&ptr->name);

          printf("Age:");

          scanf("%d",&ptr->age);

          printf("Class :");

          scanf("%s",&ptr->class);

          printf("\n Record details are\n");

          printf("Roll no: %d\n",ptr->roll);

          printf("Name: %s\n",ptr->name);

          printf("Age: %d\n",ptr->age);

          printf("Class : %s\n",ptr->class);

}