01. Dishwasher

using System;

namespace Dishwasher
{
    class Program
    {
        static void Main(string[] args)
        {
            int soupMl = int.Parse(Console.ReadLine()) * 750;
            int counter = 1;
            int dishes = 0;
            int pots = 0;
            string command = Console.ReadLine();

            while (command != "End")
            {
                int charging = int.Parse(command);

                if (counter % 3 != 0)
                {
                    dishes += charging;
                    soupMl -= charging * 5;
                }
                else
                {
                    pots += charging;
                    soupMl -= charging * 15;
                }

                if (soupMl < 0)
                {
                    Console.WriteLine($"Not enough detergent, {Math.Abs(soupMl)} ml. more necessary!");
                    break;
                }
                command = Console.ReadLine();
                counter++;
            }

            if (command == "End")
            {
                Console.WriteLine("Detergent was enough!");
                Console.WriteLine($"{dishes} dishes and {pots} pots were washed.");
                Console.WriteLine($"Leftover detergent {soupMl} ml.");
            }
        }
    }
}

РЕШЕНИЕ С FOR:

using System;

namespace Dishwasher
{
    class Program
    {
        static void Main(string[] args)
        {
            int soupMl = int.Parse(Console.ReadLine()) * 750;
            int dishes = 0;
            int pots = 0;

            for (int i = 1; i < int.MaxValue; i++)
            {
                string command = Console.ReadLine();

                if (command == "End")
                {
                    Console.WriteLine("Detergent was enough!");
                    Console.WriteLine($"{dishes} dishes and {pots} pots were washed.");
                    Console.WriteLine($"Leftover detergent {soupMl} ml.");
                    break;
                }

                int charging = int.Parse(command);

                if (i % 3 != 0)
                {
                    dishes += charging;
                    soupMl -= charging * 5;
                }
                else
                {
                    pots += charging;
                    soupMl -= charging * 15;
                }

                if (soupMl < 0)
                {
                    Console.WriteLine($"Not enough detergent, {Math.Abs(soupMl)} ml. more necessary!");
                    break;
                }
            }
        }
    }
}

РЕШЕНИЕ С FOR И ТЕРНАРЕН ОПЕРАТОР:

using System;

namespace Dishwasher
{
    class Program
    {
        static void Main(string[] args)
        {
            int soupMl = int.Parse(Console.ReadLine()) * 750;
            int dishes = 0;
            int pots = 0;
            string command = Console.ReadLine();

            for (int i = 1; i < int.MaxValue && command  != "End" && soupMl >= 0; i++)
            {
                _ = i % 3 != 0 ? dishes += int.Parse(command) : pots += int.Parse(command);
                soupMl -= (i % 3 != 0 ? 5 : 15) * int.Parse(command);
                command = Console.ReadLine();
            }

            Console.WriteLine(soupMl < 0 ? $"Not enough detergent, {Math.Abs(soupMl)} ml. more necessary!"
                : $"Detergent was enough!\n{dishes} dishes and {pots} pots were washed.\nLeftover detergent {soupMl} ml.");
        }
    }
}