using System;

using System.Collections.Generic;

using System.Linq;

​

public class Program

{

    public static void LinearSearch(double[] arr, out int maxIndex, out int minIndex)

    {

        maxIndex = 0;

        minIndex = 0;

        var max = double.MinValue;

        var min = double.MaxValue;

        double sum = 0;

        double avg = 0;

        for (int i = 0; i < arr.Length; i++)

        {

            sum += arr[i];

            if (arr[i] > max)

            {

                max = arr[i];

                maxIndex = i;

            }

​

            if (arr[i] < min)

            {

                min = arr[i];

                minIndex = i;

            }

        }

​

        avg = sum / (double)arr.Length;

        Console.WriteLine(string.Format("Max {0}, Min {1}, Avg {2}", max, min, avg));

    }

​

    public static void Main()

    {

        var ary = new double[]{34, 23, 345, 546, 4562321, 3, 45, 42, 4, 4, 6, 5, -34534, 345, 546, 456};

        int maxIndex;

        int minIndex;

        LinearSearch(ary, out  maxIndex, out minIndex);

        Console.WriteLine(string.Format("Max index : {0}, Min index : {1}, Avg index : who knows", maxIndex, minIndex));

​

    }

}