Basic_Task13

using System;

namespace Basic_Task13
{
    class Program
    {
        static void Main(string[] args)
        {
            const int SIZE = 10;
            bool isFirst = true;
            int[,] array = new int[SIZE, SIZE]{
                {1, 2, 3, 4, 5, 6, 7, 8, 9, 10},
                {5, 3, 8, 4, 123, 453, 863, 23, 563, 12},
                {-5, -2, -10, 0, -34, -1000, -234, -5432, -67, -1},
                {3, 0, 8, 1, 1, 1, 2, 5, 3, 10},
                {3, 0, 8, 1, 1, 1, 2, 5, 3, 10},
                {3, 0, 8, 1, 1, 1, 2, 5, 3, 10},
                {3, 0, 8, 1, 1, 1, 2, 5, 3, 10},
                {3, 0, 8, 1, 1, 1, 2, 5, 3, 10},
                {3, 0, 8, 1, 1, 1, 2, 5, 3, 10},
                {3, 0, 8, 1, 1, 1, 2, 5, 3, 863}
            };

            int max = array[0, 0];

            foreach (int i in array)
            {
                if (i > max)
                {
                    max = i;
                }
            }

            Console.WriteLine("Наибольший элемент: " + max);
            Console.WriteLine();
            Console.WriteLine("Исходная матрица:");
            for (int i = 0; i < SIZE; i++)
            {
                for (int j = 0; j < SIZE; j++)
                {
                    Console.Write(array[i,j] + " ");
                }
                Console.WriteLine();
            }

            for (int i = 0; i < SIZE; i++)
            {
                for (int j = 0; j < SIZE; j++)
                {
                    if (max == array[i,j] && isFirst)
                    {
                        array[i,j] = 0;
                        isFirst = false;
                    }
                }
            }
            Console.WriteLine();
            Console.WriteLine("Полученная матрицав:");
            for (int i = 0; i < SIZE; i++)
            {
                for (int j = 0; j < SIZE; j++)
                {
                    Console.Write(array[i,j] + " ");
                }
                Console.WriteLine();
            }
        }
    }
}