2_6_1.cpp

#include <iostream>

struct Sales_data 
{
	std::string bookNo;
	unsigned units_sold = 0;
	double revenue = 0.0;
};

struct Sales_data 
{
	std::string bookNo;
	unsigned units_sold = 0;
	double revenue = 0.0;
} accum, trans, *salesptr;

Sales_data accum, trans, *salesptr;

int main()
{
	
	return 0;
}