Написать программы на языке программирования.

Вот так даже правильнееusing System;using System.Collections.Generic;using System.Linq;using System.Text;namespace NoNamespace{    internal static class Program    {        private static void Main()        {            Console.WriteLine("Введите n и m");            var n = int.Parse(Console.ReadLine());            var m = int.Parse(Console.ReadLine());            if ((n <= 0) || (m <= 0))                return;            var r = new Random(DateTime.Now.Millisecond);            Console.WriteLine(@"Task1");            var a = new int[n].ChangeEach(x => r.Next(100));            Console.WriteLine(a.Print());            Console.WriteLine(a.Where(x => x%2 == 1).Print());            Console.WriteLine();            Console.WriteLine(@"Task2");            var b = new int[n, m].ChangeEach(x => r.Next(-100, 100));            Console.WriteLine(b.Print());            Console.WriteLine(Task2(b).Print());            Console.WriteLine();            Console.WriteLine(@"Task3");            Console.WriteLine(b.Print());            Console.WriteLine(b.Where(x => (x < 0) && (Math.Abs(x%2) == 1)).Print());            Console.WriteLine();            Console.ReadLine();        }        private static int[,] Task2(int[,] a)        {            var max = a.MaxIndex((x, y) => x > y);            var maxv = a[max.Item1, max.Item2];            a[max.Item1, max.Item2] = a[0, 0];            a[0, 0] = maxv;            return a;        }    }    public static class Extensions    {        public static List<T> Where<T>(this T[,] array, Func<T, bool> filter)        {            if (filter == null)                return null;            var list = new List<T>();            for (var i = 0; i < array.GetLength(1); i++)                for (var j = 0; j < array.GetLength(0); j++)                    if (filter(array[i, j]))                        list.Add(array[i, j]);            return list;        }        public static string Print<T>(this IEnumerable<T> a)        {            var enumerable = a as IList<T> ?? a.ToList();            if (!enumerable.Any())                return "Таких элементов нет";            var sb = new StringBuilder("Массив: ");            foreach (var ae in enumerable)                sb.Append($"{ae} ");            return sb.ToString();        }        public static T[,] ChangeEach<T>(this T[,] array, Func<T, T> mutator)        {            if (mutator == null)                return array;            for (var i = 0; i < array.GetLength(1); i++)                for (var j = 0; j < array.GetLength(0); j++)                    array[i, j] = mutator(array[i, j]);            return array;        }        public static T[] ChangeEach<T>(this T[] array, Func<T, T> mutator)        {            if (mutator == null)                return array;            for (var j = 0; j < array.GetLength(0); j++)                array[j] = mutator(array[j]);            return array;        }        public static string Print<T>(this T[,] a)        {            if (a.LongLength == 0)                return "Таких элементов нет";            var sb = new StringBuilder("Матрица: ");            for (var i = 0; i < a.GetLength(1); i++)            {                for (var j = 0; j < a.GetLength(0); j++)                    sb.Append($"{a[i, j]} ");                sb.AppendLine();            }            return sb.ToString();        }        public static Tuple<int, int> MaxIndex<T>(this T[,] array, Func<T, T, bool> comparer)        {            if (comparer == null)                return new Tuple<int, int>(-1, -1);            var index = new Tuple<int, int>(0, 0);            for (var i = 0; i < array.GetLength(1); i++)                for (var j = 0; j < array.GetLength(0); j++)                    if (comparer(array[i, j], array[index.Item1, index.Item2]))                        index = new Tuple<int, int>(i, j);            return index;        }    }}