10. Weather Forecast - Part 2

using System;

namespace Weather2
{
    class Program
    {
        static void Main()
        {
            double degrees = double .Parse(Console.ReadLine());
            if (degrees >= 5 && degrees < 12)
            {
                Console.WriteLine("Cold");
            }
            else if (degrees >= 12 && degrees < 15)
            {
                Console.WriteLine("Cool");
            }
            else if (degrees >=15 && degrees <= 20)
            {
                Console.WriteLine("Mild");
            }
            else if (degrees > 20 && degrees < 26)
            {
                Console.WriteLine("Warm");
            }
            else if (degrees >= 26 && degrees <= 35)
            {
                Console.WriteLine("Hot");
            }
            else
            {
                Console.WriteLine("unknown");
            }
        }
    }
}

Решение с тернарен оператор:

using System;

namespace Weather2
{
    class Program
    {
        static void Main()
        {
            double degrees = double.Parse(Console.ReadLine());

            string weather = degrees >= 5 && degrees < 12 ? "Cold" :
                             degrees >= 12 && degrees < 15 ? "Cool" :
                             degrees >= 15 && degrees <= 20 ? "Mild" :
                             degrees > 20 && degrees < 26 ? "Warm" :
                             degrees >= 26 && degrees <= 35 ? "Hot" : "unknown";

            Console.WriteLine(weather);
        }
    }
}