#include<stdio.h>
struct book
  {
   char name[20] ;
   float price ;
   int pages ;
  };
void display(struct book);
main( )
{
      
  struct book b1 = { "Let us C", 350.75, 550 } ;
  display ( b1 ) ;
  printf ( "%s %0.2f %d\n", b1.name, b1.price, b1.pages ) ;
  system("pause");
}
display ( struct book b )
{
  b.price = 50;
  b.pages = 40;      
  printf ( "%s %0.2f %d\n", b.name, b.price, b.pages ) ;
}