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

namespace ConsoleApplication18
{
    class Program
    {
        static void Main(string[] args)
        {
            double[,] exp1 = { { -1, 18 / 28f, 23 / 28f, 1 / 28f, 14 / 28f},
            { 10 / 28f, -1, 7 / 28f, 16 / 28f, 6 / 28f},
            { 5 / 28f, 21 / 28, -1, 3 / 28f, 13 / 28f},
            { 27 / 28f, 12 / 28f, 25 / 28f, -1, 5 / 28f},
            { 14 / 28f, 22 / 28f, 15 / 28f, 23 / 28f, -1} };
            double[,] exp2 = {{-1, 17/28f, 1f, 3/28f, 1/28f},
            {11/28f, -1, 5/28f, 17/28f, 16/28f},
            {0, 23/28f, -1, 2/28f, 3/28f},
            {25/28f, 11/28f, 26/28f, -1, 9/28f},
            {27/28f, 12/28f, 25/28f, 19/28f, -1}};
            double[,] exp3 = {{-1, 19/28f, 1, 2/28f, 12/28f},
            {8/28f, -1, 6/28f, 18/28f, 8/28f},
            {0, 22/28f, -1, 1/28f, 21/28f},
            {26/28f, 10/28f, 27/28f, -1, 27/28f},
            {16/28f, 20/28f, 7/28f, 1/28f, -1}};
            int N = 20;
            double[,] grade = new double[3, 5];
            for (int i = 0;i < exp1.GetLength(0); i++)
            {
                for (int j = 0; j < exp1.GetLength(1); j++)
                {
                    if (i == j) continue;
                    grade[0, j] += exp1[j, i];
                }
            }
            for (int i = 0; i < exp2.GetLength(0); i++)
            {
                for (int j = 0; j < exp2.GetLength(1); j++)
                {
                    if (i == j) continue;
                    grade[1, j] += exp2[j, i];
                }
            }
            for (int i = 0; i < exp3.GetLength(0); i++)
            {
                for (int j = 0; j < exp3.GetLength(1); j++)
                {
                    if (i == j) continue;
                    grade[2, j] += exp3[j, i];
                }
            }
            Console.WriteLine("Предпочтения: ");
            for (int i = 0; i < grade.GetLength(0); i++)
            {
                for (int j = 0; j < grade.GetLength(1); j++)
                {
                    Console.Write(grade[i, j] + " ");
                }
                Console.WriteLine("");
            }
            double[,] gradeN = new double[3, 5];
            for(int i = 0; i < gradeN.GetLength(0); i++)
            {
                for (int j = 0; j < gradeN.GetLength(1); j++)
                {
                    gradeN[i, j] += grade[i, j] / N;
                }
            }
            Console.WriteLine("-------------");
            Console.WriteLine("Нормализиванны предпочтения: ");
            for (int i = 0; i < gradeN.GetLength(0); i++)
            {
                for (int j = 0; j < gradeN.GetLength(1); j++)
                {
                    Console.Write(gradeN[i, j] + " ");
                }
                Console.WriteLine("");
            }
            double[] weight = new double[5];
            double sum = 0;
            double sumN = 0;
            for (int i = 0; i < grade.GetLength(0); i++)
            {
                for (int j = 0; j < grade.GetLength(1); j++)
                {
                    sumN += gradeN[i, j];
                }
            }
            double[] sumNgrade = new double[5];
            for (int i = 0; i < gradeN.GetLength(1); i++)
            {
                for (int j = 0; j < gradeN.GetLength(0); j++) {
                    sumNgrade[i] += gradeN[j, i];
                }
            }
            Console.WriteLine("-------------");
            for (int i = 0; i < weight.Length; i++)
            {
                weight[i] = sumNgrade[i] / sumN;
            }
            for (int i = 0; i < weight.Length; i++)
            {
                Console.WriteLine("W" + (i+1) + " = " + weight[i]);
            }
            Console.Read();
        }
    }
}