Demo Exam - 02. Make a Salad (80%)

using System;
using System.Collections.Generic;
using System.Linq;

namespace DemoExam16062019
{
    class Program
    {
        static void Main(string[] args)
        {
            Queue<string> vegetables = new Queue<string>(Console.ReadLine().Split());

            Stack<int> calories = new Stack<int>(Console.ReadLine()
                                             .Split()
                                             .Select(int.Parse));

            var clone = new Stack<int>(calories.Reverse());

            List<int> readySalads = new List<int>();
            List<string> remainingItem = new List<string>();

            int caloriesToRemove = 0;

            while (true)
            {

                if (vegetables.Count == 0 || calories.Count == 0)
                {
                    break;
                }

                string vegetable = vegetables.Peek();

                switch (vegetable)
                {
                    case "tomato":
                        caloriesToRemove = 80;
                        break;

                    case "carrot":
                        caloriesToRemove = 136;
                        break;

                    case "lettuce":
                        caloriesToRemove = 109;
                        break;

                    case "potato":
                        caloriesToRemove = 215;
                        break;
                }

                int caloriesNeeded = clone.Peek();
                int currentCalories = caloriesNeeded - caloriesToRemove;

                if (currentCalories >= 0)
                {
                    vegetables.Dequeue();
                    clone.Pop();
                    clone.Push(currentCalories);
                }


                else if (currentCalories < 0)
                {
                    vegetables.Dequeue();
                    clone.Pop();
                    readySalads.Add(calories.Peek());
                    calories.Pop();
                }

                currentCalories = 0;
            }

            while (true)
            {
                if (vegetables.Count == 0 && calories.Count == 0)
                {
                    break;
                }

                if (vegetables.Any())
                {
                    remainingItem.Add(vegetables.Dequeue());
                }

                else if (calories.Any())
                {
                    remainingItem.Add(calories.Pop().ToString());
                }
            }

            Console.WriteLine(string.Join(" ", readySalads));
            Console.WriteLine(string.Join(" ", remainingItem));

        }
    }
}