コード例 #1
0
ファイル: Machine.cs プロジェクト: MaryFox/VendiingMashine
 public Machine()
 {
     Products = new List<Product>();
     Random m = new Random();//создание экземпляра класса Рандом для создания произвольного кол-ва монет разного номинала
     Money = new Balance(m.Next(1, 1000));
     //Money = new Balance(0); //для тестирования случая, когда автомат не может выдать деньги
 }
コード例 #2
0
        /// <summary>
        /// Calculates change 
        /// </summary>
        /// <param name="money">input amount of money - dictionary where key - denomination, value - units amount</param>
        /// <param name="sum">sum that should be composed</param>
        /// <returns>dictionary where key - denomination and value - amount</returns>
        public IDictionary<decimal, int> Calculate(IDictionary<decimal, int> money, decimal sum)
        {
            if (money == null)
            {
                throw new ArgumentNullException("money");
            }

            var balance = new Balance(money);
            var result = new Stack<decimal>();
            var currentSum = 0m;
            var denomination = balance.PopTheSameOrLess(balance.GetMaxAvailable());

            while (currentSum != sum)
            {
                if (denomination == 0 && result.Count == 0)
                {
                    break;
                }

                if (currentSum + denomination <= sum && denomination > 0)
                {
                    result.Push(denomination);
                    currentSum += denomination;
                    denomination = balance.PopTheSameOrLess(denomination);
                }
                else if (denomination > 0)
                {
                    balance.Push(denomination);
                    denomination = balance.PopLessThat(denomination);
                }
                else
                {
                    while (denomination == 0 && result.Count > 0)
                    {
                        var previous = result.Pop();
                        currentSum -= previous;
                        balance.Push(previous);
                        denomination = balance.PopLessThat(previous);
                    }
                }
            }

            return result.GroupBy(item => item).ToDictionary(g => g.Key, g => g.Count());
        }
コード例 #3
0
ファイル: Client.cs プロジェクト: MaryFox/VendiingMashine
 public Client()
 {
     Money = new Balance(150);
 }
コード例 #4
0
 public CurrentTransaction()
 {
     Money = new Balance(0);
 }