Library details of a book program

Program to enter library details of a book, then listing the book details on search. Simple and straightforward.
#include<stdio.h>
#include<string.h>
main()
{
 int i,j,n,flag=0;
 char title[20];
 printf("Enter the value of n\n");
 scanf("%d",&n);
 struct book
 {
  char authorname[20];
  char bookname[20];
  int price;
 } b[n];
 for(i=0;i<n;i++)
 {
  printf("Enter the name of the author:\n");
  scanf("%s",&b[i].authorname);
  printf("Enter the name of the book:\n");
  scanf("%s",&b[i].bookname);
  printf("Enter the price:\n");
  scanf("%d",&b[i].price);
 }
  printf("Enter the title of the book you want to search\n");
  scanf("%s",title);
  for(i=0;i<n;i++)
  {
   if(strcmp(b[i].bookname,title)==0)
   {
    flag=1;
    printf("\n\n\n");
    printf("The author of the book is:");
    printf("%s",b[i].authorname);
    printf("\n");
    printf("The price of the book is:");
    printf("%d",b[i].price);
}
}
    if(flag==0)
    printf("The book is not found\n");

}