lab4_t_p_2

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

namespace lab4_tech_progr
{
    class Program
    {
        class Matrix
        {
            private int size_ra;
            private int size_ca;
            private int size_rb;
            private int size_cb;
            private int[][] all;
            private int[][] a;
            private int[][] b;
            public Matrix(int size_ra, int size_ca, int size_rb, int size_cb)
            {
                this.size_ra = size_ra;
                this.size_ca = size_ca;
                this.size_rb = size_rb;
                this.size_cb = size_cb;
                a = new int[size_ra][];
                for (int i = 0; i < size_ra; i++)
                {
                    a[i] = new int[size_ca];
                }
                b = new int[size_rb][];
                for (int i = 0; i < size_rb; i++)
                {
                    b[i] = new int[size_cb];
                }
                all = new int[size_rb][];
                for (int i = 0; i < size_rb; i++)
                {
                    all[i] = new int[size_cb];
                }
            }
            public void init_a()
            {
                Random rand = new Random();
                for (int i = 0; i < size_ra; i++)
                {
                    for (int j = 0; j < size_ca; j++)
                    {
                        a[i][j] = rand.Next() % 12 - rand.Next() % 30;
                    }
                }
            }
            public void init_b()
            {
                Random rand = new Random();
                for (int i = 0; i < size_rb; i++)
                {
                    for (int j = 0; j < size_cb; j++)
                    {
                        b[i][j] = rand.Next() % 10 - rand.Next() % 10;
                    }
                }
            }
            public void print_a()
            {
                for (int i = 0; i < size_ra; i++)
                {
                    for (int j = 0; j < size_ca; j++)
                    {
                        Console.Write("{0}", a[i][j] + " ");
                    }
                    Console.WriteLine();
                }
            }
            public void print_b()
            {
                for (int i = 0; i < size_rb; i++)
                {
                    for (int j = 0; j < size_cb; j++)
                    {
                        Console.Write("{0}", b[i][j] + " ");
                    }
                    Console.WriteLine();
                }
            }
            public void print_all()
            {
                for (int i = 0; i < size_ra; i++)
                {
                    for (int j = 0; j < size_cb; j++)
                    {
                        Console.Write("{0}", all[i][j] + " ");
                    }
                    Console.WriteLine();
                }
            }
            public static Matrix operator +(Matrix a, Matrix b)
            {
                Matrix c = new Matrix(a.size_ra, a.size_ca, b.size_rb, b.size_cb);
                if ((a.size_ra == b.size_rb) && (a.size_ca == b.size_cb))
                {
                    for (int i = 0; i < a.size_ra; i++)
                    {
                        for (int j = 0; j < a.size_ca; j++)
                        {
                            c.all[i][j] = 0;
                            c.all[i][j] = a.a[i][j] + b.b[i][j];
                        }
                    }
                }
                return c;
            }
            public static Matrix operator *(Matrix a, Matrix b)
            {
                Matrix d = new Matrix(a.size_ra, a.size_ca, b.size_rb, b.size_cb);
                if (a.size_ca == b.size_rb)
                {

                    for (int i = 0; i < a.size_ra; i++)
                    {
                        for (int j = 0; j < b.size_cb; j++)
                        {
                            d.all[i][j] = 0;
                            for (int k = 0; k < b.size_rb; k++)
                            {
                                d.all[i][j] += a.a[i][j] * b.b[i][j];
                            }
                        }
                    }
                }
                return d;
            }
            public static bool operator ==(Matrix a, Matrix b)
            {
                int s = 0;
                for (int i = 0, ii = 0; i < a.size_ra && ii < b.size_rb; i++, ii++)
                {
                    for (int j = 0, jj = 0; j < a.size_cb && jj < b.size_cb; j++, jj++)
                    {
                        if (a.a[i][j] == b.b[ii][jj])
                        {
                            s = 0;
                        }
                        else
                        {
                            s++;
                        }
                    }
                }
                if (s != 0)
                {
                    return false;
                }
                else
                {
                    return a.Equals(b);
                }
            }
            public static bool operator !=(Matrix a, Matrix b)
            {
                return !a.Equals(b);
            }
        }
        public static void Main(string[] args)
        {
            int size_ra = 3;
            int size_ca = 4;
            int size_rb = 4;
            int size_cb = 3;
            Console.WriteLine("Marix A:");
            Matrix a = new Matrix(size_ra, size_ca, size_rb, size_cb);
            a.init_a();
            a.print_a();
            Console.WriteLine();
            Console.WriteLine("Matrix B:");
            Matrix b = new Matrix(size_ra, size_ca, size_rb, size_cb);
            b.init_b();
            b.print_b();
            Console.WriteLine();
            Console.WriteLine("Operation of matrix addition A and B:");
            Matrix c = a + b;
            c.print_all();
            Console.WriteLine();
            Console.WriteLine("Operation of matrix multiplication A and B:");
            Matrix d = a * b;
            d.print_all();
            Console.WriteLine();
            Console.Write("Result of operation equals: ");
            Console.Write(a == b ? "matrixes are same" : "matrixes aren't same");
            Console.Read();
        }
    }
}