#include #include #include class Snack{ public: Snack(std::string, float, bool); int set_price(float); void set_expired(bool); void set_name(std::string); std::string name() const{return name_;} float price() const{return price_;} bool expired() const{return expr_;} int how_many_for_ten(); private: std::string name_; float price_; bool expr_; }; void SortByPrice(std::vector&,bool); Task:  Implement a function working with Snack objects that are stored using a vector. It has the following signature: void SortByPrice(std::vector& list_ref, bool asc). This function should sort the vector list_ref  based on the price_ of the Snacks. The sorting should be done in the following order: Ascending  if asc is true Descending if asc is false. In both cases if variables have the same value for price_, the sorting should be done based on the name_ in ascending order.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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#include <string>
#include <iostream>
#include <vector>
class Snack{
public:
Snack(std::string, float, bool);
int set_price(float);
void set_expired(bool);
void set_name(std::string);
std::string name() const{return name_;}
float price() const{return price_;}
bool expired() const{return expr_;}
int how_many_for_ten();
private:
std::string name_;
float price_;
bool expr_;
};
void SortByPrice(std::vector<Snack>&,bool);

Task: 

Implement a function working with Snack objects that are stored using a vector. It has the following signature: void SortByPrice(std::vector<Snack>& list_ref, bool asc).
This function should sort the vector list_ref  based on the price_ of the Snacks. The sorting should be done in the following order:
  • Ascending  if asc is true
  • Descending if asc is false.
In both cases if variables have the same value for price_, the sorting should be done based on the name_ in ascending order.

 

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