pract10(2)

using System;
using System.IO;
namespace C
{
    class Program
    {
        static void Main(string[] args)
        {

            Random r = new Random();
            StreamWriter f1 = new StreamWriter("C:\\users\\mat1.txt");
            StreamWriter f2 = new StreamWriter("C:\\users\\mat2.txt");
            Console.Write("Количество столбцов:");
            int mj = Convert.ToInt32(Console.ReadLine());
            Console.Write("Количество рядов:");
            int mi = Convert.ToInt32(Console.ReadLine());
            int[,] matx1 = new int[mi,mj];
            int[,] matx2 = new int[mi, mj];
            int[,] matx3 = new int[mi, mj];
            for (int i = 0; i < mi; i++)
                for (int j = 0; j < mj; j++)
                {
                    f1.WriteLine(r.Next(1, 100));
                    f2.WriteLine(r.Next(1, 100));
                }
            f1.Close();
            f2.Close();
            StreamReader mat1 = new StreamReader("C:\\users\\mat1.txt");
            StreamReader mat2 = new StreamReader("C:\\users\\mat2.txt");
            StreamWriter mat3 = new StreamWriter("C:\\users\\mat3.txt");
            for (int i = 0; i < mi; i++)
                for (int j = 0; j < mj; j++)
                {
                    matx1[i, j] = Convert.ToInt32(mat1.ReadLine());
                    matx2[i, j] = Convert.ToInt32(mat2.ReadLine());
                }
            for (int i = 0; i < mi; i++)
                for (int j = 0; j < mj; j++)
                    for (int g = 0; g < mi; g++)
                    {
                        matx3[i, j] += matx1[i, g] * matx2[g, j];
                    }
            for (int i = 0; i < mi; i++, mat3.WriteLine())
                for (int j = 0; j < mj; j++)
                    mat3.Write("{0} ", matx3[i, j]);
            mat1.Close();
            mat2.Close();
            mat3.Close();
        }
    }
}