#include <iostream>
 #include <string>
 #include <vector> 
 using namespace std;
 
 class Product {
 public:
    Product();
    void read();
    bool is_better_than(Product b) const;
    void print() const;
 private:
    string name;
    double price;
    int score;
 };
 
 Product::Product()
 {  price = 0;
    score = 0;
 }
 
 void Product::read()
 {  cout << "Please enter the model name: ";
    getline(cin, name);
    cout << "Please enter the price: ";
    cin >> price;
    cout << "Please enter the score: ";
    cin >> score;
    string remainder; /* read remainder of line */
    getline(cin, remainder);
 }
 
 bool Product::is_better_than(Product b) const
 {  if (price == 0) return false;
    if (b.price == 0) return true;
    return score / price > b.score / b.price;
 }
 
 void Product::print() const
 {  cout << name
         << " Price: " << price
         << " Score: " << score << "\n";
 }
 
 int main()
 {  vector<Product> products;
    Product best_product;
    int best_index = -1;
 
    bool more = true;
    while (more)
    {  Product next_product;
       next_product.read();
       products.push_back(next_product);
 
       if (next_product.is_better_than(best_product))
       {  best_index = products.size() - 1;
          best_product = next_product;
       }     
 
       cout << "More data? (y/n) ";
       string answer;
       getline(cin, answer);
       if (answer != "y") more = false;
    }
 
    for (int i = 0; i < products.size(); i++)
    {  if (i == best_index) cout << "best value => ";
       products[i].print();
    } 
    return 0;
 }