C program to create nested structures

Nested Structure:
                            A structure defined with in another structure is called nested structure.

/* C program to create nested structures */

struct country
{
    char cname[30];  /* country name */
     struct state
     {
           char sname[30];   /* state name */
            struct district
              {
                  char dname[30];    /* district name */
                  char ncities;    /* number of cities */
              }e;
      }ap;
  }i;
main()
{
   printf("\n enter your country name, state name, district name and no of cities");
   scanf("%s%s%s%d",&i.cname,&i.ap.sname,&i.ap.e.dname,&i.ap.e.ncities);
   printf("\n%s\t%s\t%s\t%d",i.cname,i.ap.sname,i.ap.e.dname,i.ap.e.ncities);
}


OUTPUT:

             enter your country name, state name, district name and no of cities
             india andhra eastgodavari 234
         
            india          andhra         eastgodavari      234

   array of structures 

C program to create nested structures, self referential structures, linked lists, array of structures