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[] p = new double[5];

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

                if (number < 200) p[0]++;
                else if (number < 400) p[1]++;
                else if (number < 600) p[2]++;
                else if (number < 800) p[3]++;
                else p[4]++;
            }

            double[] percent = new double[5];
            for (int i = 0; i < 5; i++)
            {
                percent[i] = p[i] / n * 100;
                Console.WriteLine($"{percent[i]:f2}%");
            }
        }
    }
}