[VP] Math

using System;

namespace Lab12
{
    class Program
    {
        public static void findAvg(double[] niza)
        {
            double sum = 0;
            for (int i=0; i < niza.Length; i++)
            {
                sum += niza[i];
            }
            Console.WriteLine("Average = {0}", (sum / niza.Length));
        }
        public static void findMax(double[] niza)
        {
            double max = niza[0];
            for (int i = 0; i < niza.Length; i++)
            {
                if(max <= niza[i])
                    max = niza[i];
            }
            Console.WriteLine("Maximum = {0}", max);
        }
        public static void findMin(double[] niza)
        {
            double min = niza[0];
            for (int i = 0; i < niza.Length; i++)
            {
                if (min >= niza[i])
                    min = niza[i];
            }
            Console.WriteLine("Minimum = {0}", min);
        }
        static void Main(string[] args)
        {
            int n;
            Console.WriteLine("Enter N:");
            n = Convert.ToInt16(Console.ReadLine());
            double[] niza = new double[n];
            int i=0;

            int flag;
            Console.WriteLine("Enter 1 if you want Random Generated Number Array. \nEnter 2 if you want to enter Array Numbers yourself.");
            flag = Convert.ToInt16(Console.ReadLine());

            if (flag == 1)
            {
                Random random = new Random();
                while (i != n)
                {
                    niza[i] = random.Next(0, 1000); ;
                    i++;
                }
                i = 0;
                Console.WriteLine("Generated Numbers: ");
                while (i != n)
                {
                    Console.Write("{0} \t", niza[i]); ;
                    i++;
                }
                Console.WriteLine();

                findAvg(niza);
                findMax(niza);
                findMin(niza);
            }

            else if (flag == 2)
            {
                Console.WriteLine("Enter {0} Numbers:", n);
                while (i != n)
                {
                    niza[i] = Convert.ToDouble(Console.ReadLine());
                    i++;
                }

                findAvg(niza);
                findMax(niza);
                findMin(niza);
            }
            else
                Console.WriteLine("You didn't enter 1 or 2. Program Failed.");

            Console.ReadKey();
        }
    }
}