(Solved) : Need Help Problems Please Help Include Include Include Include Containerh Include Bookh In Q27757631 . . . .

I need help with these problems! please help

#include <iostream>

#include <fstream>

#include <string>

#include “Container.h”

#include “Book.h”

#include “Buy.h”

using namespace std;

// forward declarations

void flush();

void branching(char);

void helper(char);

void add_book(string, string, float);

void change_price(Book *);

Book* search_book(string,string);

void remove_book(string,string);

void print_all(Container*);

Container* list = NULL; // global list

int main()

{

char ch = ‘i’;

do {

cout << “Please enter your selectionn”;

cout << “ta: add a new book to the listn”;

cout << “tc: change the price of a bookn”;

cout << “tb: buy a bookn”;

cout << “tr: remove a book from the listn”;

cout << “tp: print all books on the listn”;

cout << “tq: quitn”;

cin >> ch;

flush();

branching(ch);

} while (ch != ‘q’);

list = NULL;

return 0;

}

void flush()

{

int c;

do c = getchar();