SE ACW

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
namespace ProfitCalculator
{
    /// ==============================================================================
    public class RangeFinder
    {
        /// <summary>
        /// Performs calculations to find the start and end of the "best" data sequence
        /// which has the greatest sum of data values over that sequence.
        /// </summary>
        /// <param name="data">the data to be examined</param>
        /// <param name="bestStart">the start point found by the search</param>
        /// <param name="bestEnd">the end point found by the search</param>
        /// <param name="bestTotal">the sum of data values over that range</param>
        /// <param name="loops">the number of executions of the inner loop</param>
        public static void MaxSum(double[] data, out int bestStart,
       out int bestEnd, out double bestTotal, out int loops)
        {
            bestTotal = 0;
            bestStart = 0;
            bestEnd = 0;
            loops = 0;

            for (int i = 0; i < data.Length; i++)
                for (int j = i+1; j < data.Length; j++)
                {
                    double subTotal = 0;
                    for (int k = i; k <= j; k++)
                        subTotal = subTotal + data[k];
                    if (subTotal > bestTotal)
                    {
                        bestTotal = subTotal;
                        bestStart = i;
                        bestEnd = j;
                    }

                }

        }
        public static void MaxSum2(double[] data, out int bestStart,
        out int bestEnd, out double bestTotal, out int loops)
        {
            bestTotal = 0;
            bestStart = 0;
            bestEnd = 0;
            loops = 0;

            for (int i = 0; i < data.Length; i++)
            {
               double subTotal = 0;
                for (int j = i; j < data.Length; j++)
                {
                    subTotal = subTotal + data[j];
                    if (subTotal > bestTotal)
                    {
                        bestTotal = subTotal;
                        bestStart = i;
                        bestEnd = j;
                    }
                }
            }
        }
        public static void MaxSum3(double[] data, out int bestStart,
       out int bestEnd, out double bestTotal, out int loops)
        {
            bestTotal = 0;
            bestStart = 0;
            bestEnd = 0;
            loops = 0;

            int i = 0;
            double subtotal = 0;
            for (int k = i; k <= ;   )
        }
    }

}

    /// ==============================================================================
    /// <summary>
    /// Tests the Profits Calculator
    /// </summary>
    class Test
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        static void Main()
        {
            double[] data;
            int bestStart, bestEnd;
            double bestTotal;
            int loops;
            /// name of the file and the number of readings
            string filename = "week52.txt";
            int items = 52;
            data = new double[items]; /// create the data array
            try
            {
                TextReader textIn = new StreamReader(filename);
                for (int i = 0; i < items; i++) /// input and store the data values
                {
                    string line = textIn.ReadLine();
                    data[i] = double.Parse(line);
                }
                textIn.Close();
            }
            catch
            {
                Console.WriteLine("File Read Failed");
                return;
            }
            /// ---------------------------------------------------------------------
            /// call the process method to find the best profit period
            /// ---------------------------------------------------------------------
            RangeFinder.MaxSum(
data, out bestStart, out bestEnd, out bestTotal, out loops);
            Console.WriteLine("Start : {0} End : {1} Total {2} Loops {3}",
            bestStart, bestEnd, bestTotal, loops);

            Console.ReadKey();
        }
    }
}