Външно оценяване; External Evaluation

using System;

namespace Footbal
{
    class Program
    {
        static void Main(string[] args)
        {
            double numberStudents = double.Parse(Console.ReadLine());

            double poorMark = 0;
            double satisfactoryMark = 0;
            double goodMark = 0;
            double veryGoodMark = 0;
            double excellentMark = 0;

            for (int i = 1; i <= numberStudents; i++)
            {
                double score = double.Parse(Console.ReadLine());

                if (score < 22.5)
                {
                    poorMark = poorMark + 1;
                }
                else if (score >= 22.5 && score < 40.5)
                {
                    satisfactoryMark = satisfactoryMark + 1;
                }
                else if (score >= 40.5 && score < 58.5)
                {
                    goodMark = goodMark + 1;
                }
                else if (score >= 58.5 && score < 76.5)
                {
                    veryGoodMark = veryGoodMark + 1;
                }
                else if (score >= 76.5 && score <= 100)
                {
                    excellentMark = excellentMark + 1;
                }
            }

            poorMark = poorMark / numberStudents * 100;
            satisfactoryMark = satisfactoryMark / numberStudents * 100;
            goodMark = goodMark / numberStudents * 100;
            veryGoodMark = veryGoodMark / numberStudents * 100;
            excellentMark = excellentMark / numberStudents * 100;

            Console.WriteLine($"{poorMark:f2}% poor marks");
            Console.WriteLine($"{satisfactoryMark:f2}% satisfactory marks");
            Console.WriteLine($"{goodMark:f2}% good marks");
            Console.WriteLine($"{veryGoodMark:f2}% very good marks");
            Console.WriteLine($"{excellentMark:f2}% excellent marks");
        }
    }
}