Tasks: Data types, variables and constants

130 thoughts on “Tasks: Data types, variables and constants”

1. #include
   using namespace std;

   int main()
   {
   int milk = 11, coffee = 29, chocolate = 33;

   int sum = milk + coffee + chocolate;

   cout << "milk = " << milk << "$" << endl;
   cout << "coffee = " << coffee << "$" << endl;
   cout << "chocolate = " << chocolate << "$" << endl;
   cout << "Total = "<< sum << "$" << endl;

   return 0;
   }

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   1. Wrong

      Reply

2. #include
   using namespace std;

   int main() {
   setlocale(LC_ALL, “rus”);
   int a;
   int b;
   int c;
   int tile;
   int cofe;
   int generation;
   cout << "Введите цену (chocolate braid)" <> tile;
   cout << "Введите число" <> a;
   cout << "Введите цену (Coffee)" <> cofe;
   cout << "Введите число" <> b;
   cout << "Введите цену (Milk)" <> moloko;
   cout << "Введите число" <> c;
   int sum = 0;
   sum = a * tile + b * cofe + moloko * c;
   cout << "Общая цена ";
   cout << sum << endl;
   }

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3. #include
   #include
   #include
   using namespace std;
   int main()
   {
   //Russian
   setlocale(0, “”);
   //variables
   float chocolate, milk, coffee;
   float chocolatecost, milkcost, coffeecost;
   float chocolatesum, milksum, coffeesum;
   float sum;
   //number of packages
   cout << "Введите количество пачек шоколада: " <> chocolate;
   cout << "Введите количество пачек молока: " <> milk;
   cout << "Введите количество пачек кофе: " <> coffee;
   //price
   cout << "Введите стоимость пачки шоколада: " <> chocolatecost;
   cout << "Введите стоимость пачки молока: " <> milkcost;
   cout << "Введите стоимость пачки кофе: " <> coffeecost;
   //calculations
   chocolatesum = chocolatecost * chocolate;
   milksum = milkcost * milk;
   coffeesum = coffeecost * coffee;
   sum = milksum + coffeesum + chocolatesum;
   cout << "Общая цена шоколада: " << chocolatesum << endl;
   cout << "Общая цена молока: " << milksum << endl;
   cout << "Общая цена кофе: " << coffeesum << endl;
   cout << "Общая сумма: " << sum << endl;
   }

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4. /* Declare variables with which you can
   calculate the total amount of purchases of several products.
   For example a chocolate bar, coffee and milk cartons */

   #include
   using namespace std;

   int main() {
   setlocale(LC_ALL, “rus”);
   int product_chocolateBar = 30;
   int product_coffee = 100;
   int product_milkPackages = 60;
   int purchase_amount;
   cout << "Сумма покупки плитки шоколада: " << product_chocolateBar << " rub." << endl;
   cout << "Сумма покупки баночки кофе: " << product_coffee << " rub." << endl;
   cout << "Сумма покупки пакеты молока: " << product_milkPackages << " rub." << endl;
   purchase_amount = product_chocolateBar + product_coffee+product_milkPackages;
   cout << endl;
   cout << "Сумма всех покупок: " << purchase_amount << " rub." << endl;
   cout << endl;

   return 0;
   }

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5. // Declare three variables of type int and assign
   // first numeric value, second variable
   // equal to the first variable increased by 3,
   // and the third variable is equal to the sum of the first two.

   #include
   using namespace std;

   int main() {
   setlocale(LC_ALL, “rus”);
   int a, b, c;
   a = 5;
   cout << "Первая переменная int: " << a << endl;
   b = a * 3;
   cout << "Вторая переменная int: " << b <<endl;
   c=a+b;
   cout << "Третья переменная int: " << c;

   return 0;
   }

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6. // Declare variables, to count the total
   // table setting items. for example cups,
   // the same number of saucers and spoons.

   #include
   using namespace std;

   int main() {
   setlocale(LC_ALL, “rus”);
   int a, b, c, d;
   //a – cup, b – saucer, c – spoons, d – general.
   a = 4; b = a; c = b; d=a+b+c;
   cout << "Количесттво чашек: " << a << endl;
   cout << "Количество блюдец: " << b << endl;
   cout << "Количество ложек: " << c << endl;
   cout << "Общее количество предметов " << d << " for table setting!";
   return 0;
   }

   Reply

7. I did a little of my own, so that the number of products is not limited (nearly , How long will the int variable type be enough?).
   #include
   using namespace std;

   int main()
   {
   cout <> productQuantity;
   int x=1; // Product number for While loop + to output to the console
   double z = 0.0; //Variable for initial price
   while (x != (productQuantity+1))
   {
   double y; //Product Variable

   cout << "Please enter the price of the " << x <> Y;
   z = z + Y;
   ++x;

   }
   cout << "Total amount: = " << from;
   }

   Reply

8. #include

   using namespace std;

   int main()
   {
   setlocale(LC_ALL, “Rus”);
   int milk;
   cout<<"Сколько вам нужно молока?"<>milk;
   int chokolate;
   cout<<"Сколько вам нужно Шоколада?"<>chokolate;
   int coffee;
   cout<<"Сколько вам нужно кофе?"<>coffee;

   double MilkPrice = 55.99;
   double ChocolatePrice = 49.99;
   double CoffeePrice = 22.50;

   double sum = (milk*MilkPrice + chokolate*ChocolatePrice + coffee*CoffeePrice);

   cout<<"С вас "<<"₽"<<sum<<" ,Thank you for your purchase!!!"<<endl;
   }

   Reply