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

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            int max;
            int min;
            double mean;

            const int N = 50;
            int[] array = new int[N];

            //亂數產生陣列元素
            Random rand = new Random();
            for (int i = 0; i < N; i++)
            {
                array[i] = rand.Next() % 101; //產生0~100之間的整數
            }

            GetMaxMinMean(array, out  max, out min, out  mean);

            for (int i = 0; i < N; i++)
            {
                Console.Write(array[i] +" ");
            }
            Console.WriteLine();
            Console.WriteLine("Max = {0}", max);
            Console.WriteLine("Min = {0}", min);
            Console.WriteLine("Mean = {0}", mean);
        }

        static void GetMaxMinMean(int[] a, out int max, out int min, out double mean)
        {
            max = a[0];
            min = a[0];

            double sum = 0;
            for (int i = 0; i < a.Length; i++)
            {
                sum += a[i];
                if(a[i]<min) min=a[i];
                if(a[i]>max) max=a[i];
            }

            mean = sum / a.Length;
        }
    }
}