Question

Написать программы на языке программирования.

4101d93e6888764cf859e21769fe70e6.txt

d8397bb7e3684f6577dd8f911d921f25.txt

Answer 1

Вот так даже правильнее

using 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: n");
            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;
        }
    }
}