structure type

#include<stdio.h>
#include<string.h>

 struct nametype{
 char first[40];
 char last[40];

 };

 struct studenttype{
  int id;

  struct nametype name;
 };

 int main()
 {
   struct studenttype student[3];
   int i, n = 3;

   for(i=0; i<n; i++)
   {
      printf("\nEnter your student id %d: ", i+1);
      scanf("%d",&student[i].id);

      printf("\nEnter your first name %d:", i+1);
      scanf("%s", student[i].name.first);

      printf("\nEnter your last name %d:", i+1);
      scanf("%s", student[i].name.last);
   }
   for(i=0; i<n; i++)
   {
     printf("\nID: %d\n", student[i].id );
     printf("Name: %s %s\n", student[i].name.first, student[i].name.last);
   }
   return 0;
 }