04. Histogram

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _04_Histogram
{
    class Program
    {
        static void Main(string[] args)
        {
            var n = int.Parse(Console.ReadLine()); //[1...1000]

            double p1 = 0;
            double p2 = 0;
            double p3 = 0;
            double p4 = 0;
            double p5 = 0;

            for (int i = 0; i < n; i++)
            {
                var number = int.Parse(Console.ReadLine());

                if (number < 200) p1++;
                else if (number < 400) p2++;
                else if (number < 600) p3++;
                else if (number < 800) p4++;
                else p5++;
            }

            double p1Percent = p1 / n * 100;
            double p2Percent = p2 / n * 100;
            double p3Percent = p3 / n * 100;
            double p4Percent = p4 / n * 100;
            double p5Percent = p5 / n * 100;

            Console.WriteLine($"{p1Percent:f2}%");
            Console.WriteLine($"{p2Percent:f2}%");
            Console.WriteLine($"{p3Percent:f2}%");
            Console.WriteLine($"{p4Percent:f2}%");
            Console.WriteLine($"{p5Percent:f2}%");
        }
    }
}